OPINION OF THE COURT
ROBERTS, Justice.
These are appeals from final decrees of the Orphans’ Court Division of the Court of Common Pleas of Lycoming County terminating the parental rights of appellant Gladys B. to her daughter Judith Denise B. and of appellant Marjorie L. to her three sons William L., Mark L., and Frank L.1 Appellee, in both appeals, is Lycoming County Children’s Services [Children’s Services]. The parental rights of both appellants were terminated pursuant to section 311(2) of the Adoption Act of 1970.2 In addition to challenging the suffi[329]*329ciency of the evidence to support the decrees entered in their respective cases, both appellants claim that section 311(2) is vague, in violation of the due process clause of the fourteenth amendment. They also assert that section 311(2), as applied to them, deprives them of their interest in maintaining their parental relationships protected by the first, ninth, and fourteenth amendments to the United States Constitution. Because of the substantial similarity of these claims, we agreed to hear and decide the two cases together. We affirm in both appeals.
I. SECTION 311(2) OF THE 1970 ADOPTION ACT IS NEITHER UNCONSTITUTIONALLY VAGUE NOR VIOLATIVE OF SUBSTANTIVE DUE PROCESS AND MAY CONSTITUTIONALLY BE APPLIED TO TERMINATE APPELLANTS’ PARENTAL RIGHTS.
Every presumption is in favor of the constitutionality of legislative acts, Statutory Construction Act of 1972, 1 Pa. C.S. § 1922(3) (Supp.1977), and statutes are to be construed whenever possible to uphold their constitutionality. Bentman v. Seventh Ward Democratic Executive Committee, 421 Pa. 188, 218 A.2d 261 (1966). “Courts may not declare a statute unconstitutional ‘unless it clearly, palpably, and plainly violates the Constitution.’ ” Tosto v. Pennsylvania Nursing Home Loan Agency, 460 Pa. 1, 16, 331 A.2d 198, 205 (1975), quoting Daly v. Hemphill, 411 Pa. 263, 271, 191 A.2d 835, 840 (1963). Appellants’ constitutional challenges do not meet this stringent burden.
Appellants both assert that section 311(2) of the Adoption Act is unconstitutional unless given a narrowing interpretation precluding its application to terminate their respective parental rights. They assert that parents have a fundamental interest in continued association with their children protected by the United States Constitution. They contend that section 311(2) violates this interest unless inter-[330]*330preted to require two showings before parental rights may be terminated: (1) that the parent has demonstrated a “high and substantial degree of misconduct;” and (2) that the child, while in the parent’s custody, has suffered substantial physical or mental harm because of the absence of a basic need such as food, clothing, shelter, or medical care. Appellants contend that, absent such a narrow interpretation, the phrase “has caused the child to be without essential parental care, control, or subsistence necessary for his physical or mental well-being” in section 311(2) is unconstitutionally vague because it is susceptible to arbitrary enforcement and fails to give adequate notice to parents of the conduct required of them. We do not agree. Section 311(2) is not unconstitutionally vague and may constitutionally be applied to terminate parental rights where, as here, the record establishes “the repeated and continued incapacity” of a parent to provide the child with the “essential parental care, control, or subsistence necessary for his physical or mental well-being.”3
A. Section 311(2) is not unconstitutionally vague because the language of the section and the decisions of this Court interpreting section 311(2) provide sufficiently precise guidelines to ensure reasonable notice and proper application.
Vague statutes may offend the Constitution in three ways: (1) they may trap the innocent by failing to give a person of ordinary intelligence reasonable opportunity to know what is prohibited so that he may act accordingly; (2) they may result in arbitrary and discriminatory enforcement in the absence of explicit guidelines for their application, and (3) where they implicate first amendment freedoms, they may inhibit constitutionally protected activity. Grayned v. City of Rockford, 408 U.S. 104, 108-09, 92 S.Ct. 2294, 2298-99, 33 L.Ed.2d 222 (1972). Appellants argue that the language “has caused the child to be without essential [331]*331parental care, control, or subsistence necessary for his physical or mental well-being” in section 311(2) presents all three dangers. See Alsager v. District Court of Polk City, Iowa, 406 F.Supp. 10 (S.D.Iowa 1975), aff’d in part, 545 F.2d 1137 (8th Cir. 1976).
Considering first the question of notice, we believe appellants misperceive the nature of section 311(2). Unlike the typical statute attacked on vagueness grounds, section 311(2) does not prohibit or regulate any particular conduct.4 Section 311(2) is concerned only with the welfare of children whose essential needs have not been met, and whose parent cannot or will not meet those needs in the future. In the instant cases, the basis for termination is several years of demonstrated parental incapacity, which does not involve parental misconduct. When a statute attaches consequences to parental incapacity, a requirement that the statute “give a person of ordinary intelligence fair notice that his contemplated conduct is forbidden by the statute,” United States v. Harriss, 347 U.S. 612, 617, 74 S.Ct. 808, 812, 98 L.Ed. 989 (1954), serves no purpose, because the statute applies only to a parent incapable of conforming conduct to avoid the effect of the statute.
Of course, the other bases for termination relate to parental neglect, abuse, or refusal to meet the child’s essential needs and thus involve parental misconduct. Section 311(2), however, requires that, before parental rights may be terminated, the court must find that the “conditions and causes of the incapacity, abuse, neglect, or refusal cannot or will not be remedied by the parent.” 1 P.S. § 311(2) (Supp.1977). This requirement excludes the possibility that parental rights will be terminated because of insufficient notice, since the parent’s inability or unwillingness to meet the child’s essential needs must be affirmatively demonstrated. The requirement that parental conduct resulting in termination [332]*332of parental rights be irremediable negates appellants’ notice argument.5
Second, section 311(2) does not create the potential for arbitrary and discriminatory enforcement. The language of section 311(2) is broad and speaks in general terms, as do most statutes concerned with neglect.6 However, our strong policy protecting the family from unwarranted state intrusion protects against arbitrary or discriminatory applications of section 311(2).
When the child is in the home, this on-going relationship will not be disturbed except upon a showing by clear and convincing evidence that removal is “clearly necessary.” Adoption of R.I., 468 Pa. 287, 294, 361 A.2d 294, 297 (1976); Interest of Larue, 244 Pa.Super. 218, 366 A.2d 1271, 1275 (1976). It is not enough to justify termination of parental rights under section 311(2) to demonstrate that the home is “submarginal” and likely to result in a “cultural [333]*333deprivation.” In re Geiger, 459 Pa. 636, 640, 331 A.2d 172, 174 (1975). These decisions render agency officials powerless to remove a child from parental care and control absent a clear showing that the child either has been subjected to abuse or suffered serious harm, or that the threat of such harm is real and substantial and cannot be alleviated by means less drastic than removal.
Often, as in these appeals, the question of whether to terminate parental rights arises long after the unity of the family has been disrupted by separation of the child from the parent. Marjorie L’s three sons have been in foster care since 1971; Gladys B’s daughter Judith has been in foster care since 1974. Extended relegation of a child to the care of others as a result of parental incapacity or neglect is relevant in determining whether the child has been without essential parental care or control. See Rothstein v. Lutheran Social Services of Wisconsin and Upper Michigan, 405 U.S. 1051, 92 S.Ct. 1488, 31 L.Ed.2d 786 (1972); cf. In re Smith’s Adoption, 412 Pa. 501, 194 A.2d 919 (1963) (that natural mother allowed foster parents to meet child’s physical and mental needs for over a year was relevant to termination of parental rights). A stable family relationship is “necessary for [a child’s] physical or mental well-being.” “Continuity of parental affection and care provides the cornerstone for the child’s sense of self worth and security; parental discipline and example develop the wellsprings of values and ideals.” Note, In the Child’s Best Interests: Rights of the Natural Parents in Child Placement Proceedings, 51 N.Y.U.L.Rev. 446, 450 (1976). The essential need of a child for close and continuous association with a parent or parent-figure is well recognized in psychological literature. See sources cited in id. at 449-51.
Accordingly, when a child has been placed in foster care, a parent has an affirmative duty to work towards the return of the child. See Involuntary Termination of Parental Rights of S.C.B. and K.T., 474 Pa. 615, 379 A.2d 535 (1977); Appeal of Diane B., 456 Pa. 429, 321 A.2d 618 (1974). However, even when there has been a long separation occa[334]*334sioned by parental neglect or incapacity, termination of parental rights will not be ordered if there is a reasonable possibility that the causes and conditions which have led to the separation can be remedied and the family restored. Jones Appeal, 449 Pa. 543, 297 A.2d 117 (1972), demonstrates our deference to this requirement. There, although the mother was an accomplice to sexual abuse of her daughter, we refused to terminate her parental rights because the evidence did not establish that the causes or conditions leading to the abuse could not be remedied. Id. 449 Pa. at 548, 297 A.2d at 120.
The language of section 311(2) does not admit of an interpretation permitting termination of parental rights based upon personal preferences or speculative concepts of proper child rearing. The needs of the child unmet by the parent must be “essential” and “necessary” to his “physical or mental well-being.” In addition, the evidence must establish that the causes and conditions of the deprivation “cannot or will not be remedied.”
We conclude that the demanding standards of section 311(2), together with the Legislature’s and this Court’s strong policy of restraint from interfering with the family, sufficiently protect against the arbitrary and discriminatory application of section 311(2).
Similarly, even assuming that decisions affecting private family concerns implicate first amendment values, see Griswold v. Connecticut, 381 U.S. 479, 485, 85 S.Ct. 1678, 1682, 14 L.Ed.2d 510 (1965), we must reject appellants’ argument that the language of section 311(2) may have a “chilling” effect on protected parental conduct. The decisions of this Court interpreting section 311(2) protect parental conduct which does not deprive the child of its essential needs. See In re Geiger, supra. However, parental misconduct which deprives the child of essential needs is not protected by the Constitution. Mr. Chief Justice Burger, writing for the Court, stated in Wisconsin v. Yoder: “To be sure, the power of the parent even when linked to a free exercise claim, may be subject to limitation . . . if it [335]*335appears that parental decisions will jeopardize the health or safety of the child, or have a potential for significant social burdens.” 406 U.S. 205, 233-34, 92 S.Ct. 1526, 1542, 32 L.Ed.2d 15 (1972). Section 311(2) and our decisions are sufficiently clear to avoid any significant possibility a parent would be inhibited from engaging in protected conduct not constituting deprivation of essential needs of the child.
B. Section 311(2) does not violate substantive due process rights because a state may constitutionally intervene to terminate parental rights when a natural parent’s continued incapacity causes the child to be without essential parental care.
Appellants argue that the application of section 311(2) to terminate their respective parental rights, in the absence of a showing of “high and substantial misconduct” and that their children, while in their custody, had ever suffered substantial physical or mental harm, violates their constitutionally protected interest in mutual association with their children. We do not agree.
There is no doubt that the Constitution protects the family against certain intrusions by the state. Meyer v. Nebraska, 262 U.S. 390, 43 S.Ct. 625, 67 L.Ed. 1042 (1923), generally considered the seminal case recognizing constitutional protection of family concerns, invalidated a statute which prohibited teaching young children any language other than English because the statute unreasonably infringed upon the liberty interest, protected by the fourteenth amendment, of parents, teachers, and children. Noting that the contours of the liberty interest guaranteed by the fourteenth amendment had never been exactly defined, the Court stated: “Without doubt, it denotes not merely freedom from bodily restraint but also the right of the individual to . . . marry, establish a home, and bring up children . . . .” Id. at 399, 43 S.Ct. at 626. Accord, Pierce v. Society of Sisters, 268 U.S. 510, 45 S.Ct. 571, 69 L.Ed. 1070 (1925) (striking down a statute requiring that all children attend public schools). In Prince v. Massachusetts, [336]*336321 U.S. 158, 64 S.Ct. 438, 88 L.Ed. 645 (1944), the Court recognized that:
“It is cardinal with us that the custody, care and nurture of the child reside first in the parents, whose primary function and freedom include preparation for obligations the state can neither supply nor hinder, [citing Pierce ] And it is in recognition of this that these decisions [Pierce and Meyer] have respected the private realm of family life which the state cannot enter.”
Id. at 166, 64 S.Ct. at 442.
The continued vitality of the principle that there is a “private realm of family life which the state cannot enter” cannot be questioned. Just last term the United States Supreme Court stated that “when the government intrudes on choices concerning family living arrangements, this Court must examine carefully the importance of the governmental interests advanced and the extent to which they are served by the challenged regulation.” Moore v. City of East Cleveland, Ohio, 431 U.S. 494, 499, 97 S.Ct. 1932, 1936, 52 L.Ed.2d 531 (1977) (plurality opinion). See also Smith v. Organization of Foster Families for Equality and Reform, 431 U.S. 816, 829, 97 S.Ct. 2094, 2109, 53 L.Ed.2d 14 (1977); Cleveland Board of Education v. LaFleur, 414 U.S. 632, 639-40, 94 S.Ct. 791, 796, 39 L.Ed.2d 52 (1974) (“This Court has long recognized that freedom of personal choice in matters of marriage and family life is one of the liberties protected by the Due Process Clause of the Fourteenth Amendment.”); Wisconsin v. Yoder, 406 U.S. 205, 231-33, 92 S.Ct. 1526, 1541-42, 32 L.Ed.2d 15 (1972); Stanley v. Illinois, 405 U.S. 645, 651, 92 S.Ct. 1208, 1212, 31 L.Ed.2d 551 (1972); Ginsberg v. New York, 390 U.S. 629, 639, 88 S.Ct. 1274, 1280, 20 L.Ed.2d 195 (1968).
In related cases, the United States Supreme Court has recognized that the Constitution affords protection to “a right of personal privacy, or a guarantee of certain areas or zones of privacy.” Roe v. Wade, 410 U.S. 113, 152, 93 S.Ct. 705, 726, 35 L.Ed.2d 147 (1973). See also Carey v. Population Services International, 431 U.S. 678, 684, 97 S.Ct. 2010, 2016, [337]*33752 L.Ed.2d 675 (1977) (plurality opinion); Whalen v. Roe, 429 U.S. 589, 598, 97 S.Ct. 869, 876 (1977); Griswold v. Connecticut, supra at 485, 85 S.Ct. at 1682. Personal decisions relating to child rearing are within this zone and protected from unwarranted interference by the state. Carey v. Population Services International, supra, 431 U.S. at 684, 97 S.Ct. at 2016 (plurality opinion), citing Pierce and Meyer.
These cases do not, however, support the proposition that the state can never interfere in the parent-child relationship. Indeed, in Stanley v. Illinois, supra, the United States Supreme Court recognized that the state had not only a right, but a duty to protect minor children. 405 U.S. at 649, 92 S.Ct. at 1212. See also Prince v. Massachusetts, supra (upholding anti-child labor statute against challenge that it unreasonably infringed upon parent’s and child’s free exercise of religion and parent’s right to educate child in her beliefs). Constitutional restraint on state interference in family matters does not compel the courts to protect parental rights at the expense of ignoring the rights and needs of children. In Planned Parenthood of Central Missouri v. Danforth, 428 U.S. 52, 96 S.Ct. 2831, 49 L.Ed.2d 788 (1976), the United States Supreme Court rejected the argument that the state’s interest in protecting parental authority justified giving parents a veto power over a minor’s decision to have an abortion “where the minor and the nonconsenting parent are so fundamentally in conflict and the very existence of the pregnancy has already fractured the family structure.” Id. at 75, 96 S.Ct. at 2844. See also Wisconsin v. Yoder, 406 U.S. at 241 49, 92 S.Ct. at 1546-50 (concurring and dissenting opinion of Douglas, J.); In re Roger S., 19 Cal.3d 921, 141 Cal.Rptr. 298, 569 P.2d 1286 (1977) (unconstitutional to permit parent of fourteen year old child to commit the child to a mental institution over the child’s objection). In determining whether parental rights should be terminated, the court must recognize the essential needs of the child as well as the rights of the parent.
The source of the state’s authority to intervene in family matters to protect minor children has been said to [338]*338be the doctrine of parens patriae, the concept that the sovereign is the father of his country. See, e. g., Adoption of R.I., 468 Pa. at 294, 361 A.2d at 297. Although the doctrine of parens patriae has been subject to critical comment in recent years,7 there is general agreement that the state has the right and the duty to act to protect its weaker members, such as infants, who are unable to protect themselves,8 and to compel parents and children alike to act in ways beneficial to society.9 See Kleinfeld, The Balance of Power Among Infants, Their Parents and the State, 4 Fam. L.Q. 320 (1970), 4 Fam.L.Q. 410 (1970), 5 Fam.L.Q. 64 (1971). The state’s responsibility to protect its weaker members authorizes interference with parental autonomy and decisionmaking in appropriate circumstances. The moral and practical importance of this authority was set forth by Chief Justice Maxey in Commonwealth ex rel. Children’s Aid Society v. Gard:
“Societies which like the relator are entrusted by the sovereign with power over the lives of infants should ever bear in mind that consideration for the sensibilities of children and solicitude for their well-being is the hallmark of an humane individual and of a civilized state.”
362 Pa. 85, 99, 66 A.2d 300, 307 (1949).
Parental rights must be accorded significant protection. Meyer v. Nebraska, supra; Pierce v. Society of Sisters, supra; Prince v. Massachusetts, supra; and Wiscon[339]*339sin v. Yoder, supra. The state may, however, constitutionally require the rights of parents to yield to the child’s essential health and safety needs. See Wisconsin v. Yoder, supra; accord, In the Matter of Petition for Adoption of J.S.R., 374 A.2d 860 (D.C.1977) (“[T]he right of a parent to raise one’s child is an essential, but not absolute, one, which can be terminated . . . .”).10 When, as here, a parent is incapable of meeting the child’s essential needs, see section II, infra, the state may constitutionally intervene to protect the “physical or mental well-being” of the child. In these circumstances, the interest of the parent in keeping the child conflicts with the interest of the child in its essential physical and emotional needs and the Legislature has constitutionally mandated that the interests of the weaker party, the child, should prevail. This legislative determination must be accorded great deference for “when an issue involves policy choices as sensitive as those implicated by [the involuntary termination of parental rights], the appropriate forum for their resolution in a democracy is the legislature.” Maher v. Roe, 432 U.S. 464, 97 S.Ct. 2376, 2385-86, 53 L.Ed.2d 484 (1977). As Mr. Justice Holmes stated in Missouri, Kansas and Texas Railway Company v. May, 194 U.S. 267, 270, 24 S.Ct. 638, 639, 48 L.Ed. 971 (1904): “[Legislatures are ultimate guardians of the liberties and welfare of the people in quite as great a degree as the courts.”
Therefore, appellants’ assertion that “high and substantial misconduct” on the part of the parent must be shown before parental rights may be constitutionally terminated cannot be accepted. Their contention ignores the state’s constitutional interest in the welfare of the child.11
[340]*34011. THE DECREES OF THE ORPHANS’ COURT DIVISION TERMINATING THE PARENTAL RIGHTS OF APPELLANTS ARE SUPPORTED BY COMPETENT .EVIDENCE.
A. Scope of Review
Having determined that section 311(2) of the 1970 Adoption Act is constitutional, it remains to be determined whether the orphans’ court properly applied the section to the facts of the instant cases. Our scope of review is limited to determining whether the orphans’ court’s terminations of appellants’ parental rights are supported by competent evidence. E. g., In re: Involuntary Termination of Parental Rights of S.C.B. and K.T., 474 Pa. 615, 624, 379 A.2d 535, 540 (1977); Adoption of M.T.T., 467 Pa. 88, 354 A.2d 564 (1976); Adoption of Farabelli, 460 Pa. 423, 333 A.2d 846 (1975) (plurality opinion); Sheaffer Appeal, 452 Pa. 165, 305 A.2d 36 (1973). Findings of the orphans’ court supported by evidence of record are entitled to the same weight given a jury verdict and must be sustained unless the court abused its discretion or committed an error of law. E. g., Garges Estate, 474 Pa. 237, 378 A.2d 307 (1977); In re Wertman Estate, 462 Pa. 195, 340 A.2d 429 (1975); Button Estate, 459 Pa. 234, 328 A.2d 480 (1974); Cohen Will, 445 Pa. 549, 284 A.2d 754 (1971); Holtz Will, 422 Pa. 540, 222 A.2d 885 (1966); Hunter Will, 416 Pa. 127, 205 A.2d 97 (1964).12
[341]*341B. The orphans’ court division’s determination that appellant Marjorie L.’s continued incapacity to care for her children, combined with her separation from her children since 1971, had caused her three sons to be without “essential parental care,” and that this incapacity could not be remedied by appellant, is supported by competent evidence [Appeal at No. 46].
The three children involved in this appeal are Frank, age 13, William, age 11, and Mark, age 7. Pursuant to a voluntary placement agreement, all have been in the custody of Children’s Services since June 8, 1971, when they were, respectively, ages 7, 5, and 1. Appellant has never married and none of the fathers of the three children has opposed termination of his parental rights.13 Appellant has two other children. Carol, the oldest, age 17, has lived with appellant’s parents for many years and there are no plans for her to return to her mother. Appellant’s youngest child, Tracie, age 6, lives with appellant.
Appellant was pregnant with Tracie at the time she placed her three sons with Children’s Services. Children’s Services had become involved with appellant and her children because of the severely substandard condition of the home which, according to appellant’s caseworker, was unfit for habitation by children.14 After Tracie’s birth Children’s Services helped appellant locate an apartment. The apartment appellant selected could accommodate only appellant and Tracie.15 Frank, William and Mark continued to remain [342]*342in foster care, and appellant visited them once a month at the Children’s Services’ office. In November, 1974, while still in the two-person apartment, appellant requested that her three sons be returned. The agency, concluding appellant was unable to provide the children with appropriate care and supervision, declined. Children’s Services advised appellant of the availability of legal services and in December, 1975, with the assistance of counsel, appellant petitioned for visitation with the children in her home. The court of common pleas ordered that her visitation be increased to twice a month, and that visitation be at her home.
Shortly after the three boys entered foster care in 1971, nutrition aids began regularly visiting appellant’s home to help her maintain her household and raise Tracie.16 Appellant has continuously relied heavily on these aids for even the more simple tasks of everyday life. The nutrition aid supervisor testified that in the three week period before the hearing appellant had visited her approximately seventeen times for assistance with various minor problems, even though the supervisor’s office was some distance from appellant’s home. Despite the continuous assistance, however, appellant has made little or no progress in learning how to cope with problems on her own, and the aids must necessarily continue to perform basic tasks for appellant.17
[343]*343The record establishes that appellant is minimally capable of caring for her youngest daughter Tracie, even with the extensive assistance she receives from the nutrition aids. The record also establishes, however, that appellant’s capabilities are taxed beyond their limits when she attempts to supervise and control her three sons, in addition to Tracie. The caseworkers and aids present during the custodial visits ordered in 1975, which continued regularly up to the time of the hearing in May, 1976, testified that general havoc prevailed during the visits. They described the visits as “free-for-alls” in which appellant chased one child after another attempting to keep them under control. The visits failed to re-establish closer ties between appellant and the boys. Frank and William were observed to “tolerate their mother.” Mark, who has been with the same foster family since he was one year old, was unable to relate emotionally to appellant or his brothers and would simply watch television.
All three children testified in chambers and, although they expressed some affection for appellant, agreed that they did not want to live with appellant. Frank, then 13, openly admitted that he refused to obey appellant and that she was incapable of doing anything about it. He believed that appellant would not be able to care for him and his brothers.
[344]*344In January, 1976, appellant, at the request of Children’s Services, agreed to be interviewed and tested by a psychologist. The psychologist administered a structured interview called the Yinelin Social Maturity Scale and the standardized Slosson Intelligence Test. The first test indicated that appellant’s social skills and ability to function independently were at about the twelve year old level. The intelligence test, which measures numerical and verbal reasoning skills, indicated that appellant had an IQ of 43 and a mental age of six years, ten months.18 Although appellant testified at the hearing that she had completed the seventh grade in school, she told the psychologist that she did not know how to read. The psychologist testified that appellant had limited communication skills and showed considerable difficulty in comprehending simple ideas concerning housework, cooking, and child care. In her psychological evaluation, the psychologist concluded that appellant lacked the social maturity and intellectual capability to cope with the continuing responsibilities of raising children.19
The orphans’ court terminated appellant’s parental rights to her three sons pursuant to section 311(2) of the Adoption [345]*345Act. As this Court observed in In re Geiger, 459 Pa. 636, 639, 331 A.2d 172, 174 (1975), this section requires that three facts be shown before parental rights may be terminated: (1) repeated and continued incapacity, abuse, neglect, or refusal; (2) such incapacity, abuse, neglect, or refusal has caused the child to be without essential parental care, control or subsistence necessary for his physical or mental well-being; and (3) the causes of the incapacity, abuse, neglect, or refusal cannot or will not be remedied. A decision to terminate parental rights, never to be made lightly or without a sense of compassion for the parent, can seldom be more difficult than when termination is based upon parental incapacity. The Legislature, however, in enacting the 1970 Adoption Act, concluded that a parent who is incapable of performing parental duties is just as parentally unfit as one who refuses to perform the duties. The orphans’ court properly adhered to this statutory determination and concluded that the elements of the statute — continued incapacity to meet the children’s essential needs — had been demonstrated by clear and convincing evidence. The orphans’ court stated:
“It is absolutely clear to the court that, by reason of her very limited social and intellectual development combined with her five-year separation from the children, the mother is incapable of providing minimal care, control and supervision for the three children. Her incapacity cannot and will not be remedied.”
Having first determined that grounds for termination existed, the orphans’ court held that the best interests of Frank, William and Mark dictated that appellant’s parental rights be terminated in order that the opportunity might be afforded the three boys to enjoy a stable family relationship through adoption. We find the decree of the orphans’ court supported by competent evidence.
Appellant argues that the decree cannot be sustained because there was no compelling evidence that Frank, William, and Mark, while in her care, were ever neglected, abused, or abandoned by appellant or deprived of a basic [346]*346health need such as food, medical care, clothing, or shelter. Appellant also asserts that a “high and substantial degree of misconduct” by the parent must be demonstrated before the parent’s.rights to a child may be terminated. She contends that section 311(2) requires a showing that substantial physical or mental harm resulted from the absence of a basic necessity such as food, clothing, shelter, or medical care, and that such harm occurred while the child was living with its parent. Finally, appellant argues that a child cannot be deprived of “essential parental care, control, or subsistence” while in foster care.
Nothing in the language of the act requires a showing of a “high and substantial degree of misconduct” before parental rights can be terminated.20 In Adoption of R.I., 468 Pa. 287, 361 A.2d 294 (1976), this Court rejected the contention that “willful misconduct” was a necessary predicate to termination of parental rights. Id. 468 Pa. at 297-98 n.10, 361 A.2d at 299 n.10. The notion that a showing of parental misconduct is necessary before parental rights may be terminated rests upon the erroneous assumption that the purpose of section 311(2) is to punish an ineffective or negligent parent. Section 311(2) reflects a deep concern for the essential needs of the child, not a legislative vengeance against parental misconduct. The official. comment to the Adoption Act of 1970 states that the provision “centers judicial inquiry upon the welfare of the child rather than the fault of the parent.” Joint State Government Commission, Official Comment, Adoption Act (1970). Thus, section 311(2) authorizes termination upon a showing of parental incapacity, when the incapacity “cannot or will not be remedied by the parent” and has “caused the child to be without essential parental care, control, or subsistence necessary for his physical or mental well-being.” The Legislature clearly mandated that, in such circumstances, the “physical or mental well-being” of the child must be protected.
[347]*347Neither the language of section 311(2) nor our case law supports appellant’s contention that section 311(2) requires a showing that the child suffered substantial physical or mental harm while in the parent’s custody, see Appeal of Diane B., 456 Pa. 429, 321 A.2d 618 (1974), or that a child cannot be deprived of “essential parental care, control, or subsistence” while in foster care, see Adoption of R.I., 468 Pa. 287, 361 A.2d 294 (1976). Appellant argues that her narrow construction is necessary to protect the family from unwarranted and potentially harmful intrusions by the state. However, the need to guard against unwarranted state intrusion in family affairs does not require an interpretation of section 311(2) precluding its application in circumstances where, as here, the family has no prospect of being reunited and the physical and mental needs of the three children, who have already been out of the home since 1971, cannot be met by the parent.
It is the policy of this Commonwealth to preserve and protect the family whenever possible. The Juvenile Act like the Adoption Act, concerns state intervention in the parent-child relationship when essential to protect the welfare of the child.21 The Juvenile Act provides:
“This Act shall be interpreted and construed as to effectuate the following purposes: [348]*348Act of December 6, 1972, P.L. 1464, § 1(b)(1), (3), 11 P.S. § 50-101(b)(l), (3) (Supp.1977). Thus, our courts have held that, under the Juvenile Act, the state may act to remove a child from its home only upon a showing of “clear necessity.” Adoption of R.I., 468 Pa. at 294, 361 A.2d at 297 (dictum); Interest of Larue, 244 Pa.Super. 218, 225, 366 A.2d 1271, 1275 (1976); Stapleton v. Dauphin County Child Care Services, 228 Pa.Super. 371, 391, 324 A.2d 562, 572 (1974); Rinker Appeal, 180 Pa.Super. 143, 117 A.2d 780 (1955).
[347]*347(1) To preserve the unity of the family whenever possible and to provide for the care, protection, and wholesome mental and physical development of children coming within the provisions of this act.
(3) To achieve the foregoing purposes in a family environment whenever possible, separating the child from parents only when necessary for his welfare or in the interest of public safety.”
[348]*348This policy of restraint, however, is not intended solely to protect the rights of parents. Continuity of relationships is also important to a child, for whom severance of close parental ties is usually extremely painful. Goldstein, Freud & Solnit, Beyond the Best Interests of the Child 20, 31-34 (1973), cited in Wald, “Search for Realistic Standards,” supra at 994. Thus the policy of restraint is incorporated in the demanding standards of our removal and termination statutes to protect the family from harmful and unwarranted state intrusion.
The “continuity of relationships” consideration, however, is equally applicable where, as here, the child has lived with one foster family for a considerable period of time. Removal of the children from their foster homes, or inflicting upon them the fear that they might be removed at any time, could create psychological and emotional distress similar to that caused by their removal from their natural parent. See Adoption of R.I., supra, 468 Pa. at 299 n.13, 361 A.2d at 300 n.13; Commonwealth ex rel. Children's Aid Society v. Gard, 362 Pa. 85, 97, 66 A.2d 300, 306 (1949); Foster, Adoption and Child Custody: Best Interests of the Child?, 22 Buff.L.Rev. 1, 11-14 n.8 (1972). The language of section 311(2) should not, therefore, be read to compel courts to ignore a child’s need for a stable home and strong, continuous parental ties, which the policy of restraint in state intervention is intended to protect, where, as here, disruption of the family has already occurred and there is no reasonable prospect for reuniting it without serious emotional harm to the child. In such circumstances, the issue is not whether the state should [349]*349intrude to disrupt an on-going family relationship, but whether the state should seek to preserve in law a relationship which no longer exists in fact, with the result that the child is consigned indefinitely to the limbo of foster care or the impersonal care of institutions.
Appellant’s contention that a child can never be without essential parental care while in a foster home is neither factually correct nor required by the law.22 Appel[350]*350lant’s interpretation of section 311(2) would, contrary to the legislative mandate, protect the rights of a parent long separated from her child at the expense of the essential physical and mental needs of the child. To the contrary, when continued incapacity prevents a parent from caring for the child and, as a result, the parent-child relationship is substantially “weakened by long separation” and cannot be re-established, parental rights may be terminated so that the child may have an opportunity to escape the limbo of foster or institutional care and establish a new parent-child relationship through adoption.
Here, appellant’s three sons have been in foster care since 1971. Perhaps in recognition of her own inability to care for them, appellant made no effort to secure the return of her three sons for more than three years.23 Despite her regular visits, appellant’s relationship with her sons, especially the youngest, has greatly deteriorated. All three regard their foster parents with affection24 and have no desire to return to appellant’s custody. In determining whether appellant’s continued incapacity had caused them to be “without essential parental care, control, or subsistence necessary for [351]*351[their] physical or mental well-being,” the orphans’ court properly considered the fact that appellant’s inability to care for the three boys since 1971 effectively precluded the possibility that the family would ever be reunited.25 The orphans’ court concluded that “the mother will never be capable, in our judgment, of resuming custody. The choice is between the limbo of continuing fosterhood and the potentiality of a normal parent-child relationship.”
The orphans’ court’s determination that appellant’s continued inability26 to care for her three sons, combined [352]*352with her separation from her children since 1971, had caused her three sons to be without “essential parental care, control or subsistence necessary for [their] physical or mental well-being,” and that this incapacity could not or would not be remedied by appellant is supported by competent evidence. See Appeal of Diane B., 456 Pa. 429, 321 A.2d 618 (1974).
C. The orphans’ court division’s determination that appellant Gladys B.’s “repeated and continued incapacity” to maintain a safe and sanitary home had caused her daughter Judith to be without “essential parental care, control or subsistence” and that such incapacity would not or could not be remedied is supported by competent evidence [Appeal at No. 113].
Judith Denise B., age 11, is appellant Gladys B.’s youngest child. Judith’s father left the home many years ago and his whereabouts are unknown. Judith has been in foster care since November, 1974, pursuant to an order granting custody of Judith to appellee, Lycoming County Children’s Services [Children’s Services].27
In 1974, four of appellant’s six minor children resided with her — Dorothy, then age 17, Boyd, then age 15, David, then age 12, and Judith, then age 9. An older daughter, Joan, [353]*353and her two children also resided with appellant.28 Appellant was well known to public health officials and Children’s Services as a result of frequent complaints received over the years concerning extremely unsanitary conditions in the different homes in which the family had lived. Children’s Services had worked with the family since 1966. The caseworker involved from August 1971 until August 1975 testified that, without exception, when she visited appellant’s home the floor was strewn with raw garbage on which one could not avoid stepping. She observed dogs running free throughout the house, eating off dirty diapers, and occasionally stealing food from the plates of the younger children.
A Williamsport Public Health Officer testified to responding regularly over a ten year period to complaints filed by neighbors while appellant lived at seven different addresses. Typically, the complaints related to insect and rodent infestation and accumulations of garbage. Invariably, he found the houses grossly unsanitary, with garbage scattered both inside and about the home. Dirty clothes and particles of food were all over the floors; during the summers, he observed maggots in the food. Appellant’s refrigerator was always filthy and usually contained moldy food. Roach infestation was the norm, and in appellant’s last two residences, including the residence she occupied with the children in 1974, roaches were even inside the refrigerator. About the time Judith was placed in foster care, appellant was evicted from her residence in the housing project. The public health officer testified that the whole row of houses adjoining appellant’s residence had to be fumigated, which took about four months. He testified that most of the twenty-five to thirty times he visited appellant’s residences they were so unsanitary as to be unfit for human habitation.
A school counselor, associated with appellant’s family over an eight year period, corroborated the testimony concerning the condition of the homes. In the course of her work she visited appellant at three different residences. At each [354]*354residence raw garbage and food was scattered on the floor and the odor of animal feces permeated the air. The counselor met appellant while working with Judith’s brother David, who was a truancy problem. Children at school teased David because of his filthy clothes and lack of personal hygiene. The counselor testified that appellant listened to her recommendations, but did nothing to correct the problems.
In February, 1974, a juvenile probation officer visited the home. It was extremely squalid. The windows were out, a condition the public health officer testified was common at appellant’s residences. Room temperature was below freezing and there was no heat. The probation officer could not recall if he had seen Judith, but the children he observed were inadequately clothed, including an infant wearing only a diaper. In an apparent effort to heat the house, the gas burners on the stove were turned on at full capacity. Nearby, dirty laundry was stacked up, creating an alarming fire hazard.
These conditions, as well as complaints from neighbors concerning a lack of supervision over the children, led Children’s Services to seek custody of Judith in the Spring of 1974. Rather than remove Judith at that time, the court ordered Children’s Services to visit the home regularly and assist appellant in improving conditions.
In March, 1974, Judith’s sister Dorothy, then 17, was involved in a burglary. The juvenile court removed Dorothy from the home and placed her in foster care where she remained until she was 19. She is now enrolled in college and living outside the home. Judith’s brother Boyd, then 15, was also involved in juvenile offenses. In 1973, he was before the juvenile court twice, once for burglary and larceny, and a second time for burglary. In October of 1974, he was again before the juvenile court for bicycle thefts, in which he had enlisted the aid of his 13 year old brother David and Judith, then 9 years old. Boyd was removed from the home and placed in a juvenile institution where, according to the testimony, he had an excellent record and [355]*355improved educationally and socially. He returned to the home in November, 1975, but less than three months later, he was again removed after yet another theft offense. He was placed in a residential work experience program where, once again, he had an excellent record and seemed to mature considerably. He completed the program, returning home in August, 1976. His caseworker testified that, at age 17, he appeared sufficiently mature to get by on his own.
David and Judith were also removed from the home following the theft offense. After completing a youth development program, David was placed in a foster home and is now in a private group home. There are no plans for his return to appellant’s custody.
Appellant’s caseworker testified that, rather than improving, appellant’s home deteriorated from Spring, 1974, when Children’s Services first petitioned for Judith’s custody, until October, 1974, when Judith was removed. Moreover, Judith’s involvement in the bicycle thefts and her increasing truancy indicated that serious behavioral problems were developing. Since placed in the custody of Children’s Services, she has been in a stable foster home and appears well adjusted. Children’s Services considers her prospects for adoption excellent.
After appellant’s minor children had been removed from the home in 1974, Children’s Services attempted to develop a plan with appellant which would allow Judith to return. The plan involving working with nutrition aids to improve her housekeeping and food preparation skills, seeking counseling, and allowing caseworkers to monitor conditions in the home. There was testimony that aids and caseworkers visited the home on a few occasions when conditions seemed to have improved and the home appeared reasonably sanitary. However, opportunities for observation of conditions in the home were limited because appellant was often not at home, or did not answer the door, when the nutrition aid arrived for scheduled visits, or a caseworker came to the house. Sometimes appellant or her daughter Joan refused [356]*356to allow the caseworker inside and spoke to her at the door or through a window.
That unsanitary conditions persisted in the home was again revealed in February, 1976. David had run away from his foster home and juvenile probation caseworkers came to appellant’s home where David was hiding. The conditions were so deplorable that the juvenile officers requested Children’s Services to make an immediate visit. Although all of appellant’s minor children were then living elsewhere, the agency was concerned about the infant children of Joan, appellant’s daughter. Garbage and food were strewn on the floors throughout the house, including the upstairs. Dirty diapers were found on the floors, along with feces from several dogs and cats, causing a foul odor to permeate the house. Photographs confirm the testimony describing these grossly unsanitary conditions.
Children’s Services petitioned for custody of Joan’s children. The agency reached an agreement with Joan whereby she obtained and is maintaining a separate residence with her children.
Appellant’s willingness to cooperate with Children’s Services in improving the conditions of her different residences and supervising her children has varied over the years. At times, she has listened to the suggestions of caseworkers and expressed her intention to improve her housekeeping and child care skills. Similarly, the public health officer and the school counselor who worked with David testified that appellant would hear them out and promise to follow their suggestions. Invariably, however, appellant made no effort to alleviate the offensive conditions. At other times, appellant expressed hostility towards the agency and the caseworkers for interfering in her life. Nutrition aides discontinued their visits in late 1975 because appellant was never home at the agreed times.
Appellant, who completed only two years of schooling and is illiterate, has shown over the years almost no comprehension of even rudimentary standards necessary to maintain minimal living conditions and to supervise her children. [357]*357Repeatedly, she expressed a complete inability to control the children, whom she blamed for the unsanitary conditions. For example, when advised by different caseworkers that the animals running loose throughout the house had to be controlled, she answered that she could do nothing about them because they were the children’s pets.
The orphans’ court concluded that, although appellant appeared to love Judith, the evidence clearly established appellant’s “continued and repeated incapacity” which had caused Judith to be without “essential parental care, control or subsistence necessary for her physical and mental well-being.” The court found that this incapacity, which it attributed primarily to appellant’s lack of emotional control and self-discipline, was irremediable. Having determined that grounds existed justifying termination of appellant’s parental rights under section 311(2) of the Adoption Act, the court concluded that Judith’s best interests would be served by terminating appellant’s parental rights so that Judith might be adopted into a responsible family, able to meet her essential needs.29 The decree of the orphans’ court is supported by adequate and competent evidence.
As in the appeal of Marjorie L., appellant Gladys B. argues that the decree cannot be sustained because there was no compelling evidence of a “high and substantial degree of misconduct” by appellant or that Judith, while in appellant’s custody, ever suffered serious harm from lack of food, clothing or shelter. We rejected the former argument in Part II B of this opinion, insofar as it relates to the requirements of the Adoption Act. Although Judith never suffered serious harm while in appellant’s custody, the record fully supports the orphans’ court’s finding that the conditions in appellant’s homes while Judith was in her [358]*358custody constituted a serious threat to Judith’s health and safety. We cannot agree with appellant that where, as here, a serious threat to health and safety has been shown, the court cannot terminate parental rights until serious harm actually occurs. It would indeed be an insensitive requirement that actual harm must first come to the child before the Commonwealth’s interest in the child’s health and welfare could be invoked.
Appellant’s reliance upon In re Geiger, 459 Pa. 636, 331 A.2d 172 (1975), in which this Court reversed a decree terminating parental rights under section 311(2), is misplaced. Geiger does not support appellant’s contention that substantial physical harm to the child must first be shown before parental rights may be terminated. In Geiger, the orphans’ court relied upon evidence that the home condition was “submarginal” and would cause a “cultural deprivation,” in the future, to support termination of the parent’s rights. Here, unlike in Geiger, the orphans’ court’s decree was based upon substantial evidence establishing that the conditions in appellant’s different homes presented a serious health and safety hazard, and not merely a “cultural deprivation.”
In addition to the threat to Judith’s health presented by appellant’s inability to maintain a safe and sanitary home, the record supports the orphans’ court’s conclusion that appellant is incapable of supervising Judith. Appellant admitted she was unable to control her children when they were at home and, before Judith was taken from appellant’s custody, Judith appeared to be entering the same pattern of delinquency exhibited by her older brothers and sister.30
[359]*359Judith has been in foster care since 1974. Appellant’s incapacity to maintain a minimally adequate home or to supervise her children, which has already led to the disruption of the family for many years, has not been remedied despite ten years of assistance from caseworkers, nutrition aides, public health officials, and school counselors. The orphans’ court properly concluded that appellant’s incapacity would not or could not be remedied.
III. SUMMARY
We hold that section 311(2) is not unconstitutionally vague in light of its demanding standards and the strong policy of restraint from interfering in the family developed in our case law. We also hold that, on the facts of these cases, the application of section 311(2) to terminate appellants’ parental rights is constitutionally permissible. Finally, we hold that there is competent evidence in each appeal supporting the orphans’ court’s decrees terminating appellants’ parental rights pursuant to section 311(2) of the Adoption Act.
Decree in Appeal No. 46 terminating the parental rights of Marjorie L. is affirmed. Each party to pay own costs.
Decree in Appeal No. 113 terminating the parental rights of Gladys B. is affirmed. Each party to pay own costs.
NIX, J., filed a concurring and dissenting opinion.
MANDERINO, J., filed a dissenting opinion.