The functions which are basic in nature and which cannot be performed successfully by any other institutions are called primary essential functions of family. Under this category the family performs the following function:

(1) Stable Satisfaction of Sex need:

This is the Primary and essential function of family. Sex instinct is the natural urge of human being. The satisfaction of this need requires that both male and female should live together as life partners. It is the family where the husband and wife can satisfy their sex instincts easily and comfortably. Without family the satisfaction of sex need is almost socially quite impossible. A family not only satisfies but also provides the appropriate mechanism through marriage to regulate sexual behavior of husband and wife.

(2) Reproduction or procreation:

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Reproduction or procreation is another essential function of family. The family along with regulating the sexual behavior in relation to the satisfaction of sexual needs secures a legitimate basis for procreation. Since the inception of family, it has been performing this fundamental function. This function of family contributes to the continuity of family and ultimately perpetuates the human race as a whole.

(3) Protection and care of the young:

Protection and care of the children is another essential function of family. It is regarded as an institution par excellence for the production and rearing of children. It is true that no other institution can take required care of the child like family. The child at birth is complete helpless and cannot survive at all without the help of the family. It is the family which provides care, protection, security (Physical, mental) and fulfills all other needs to make him fit in the society.

(4) Socializing Functions:

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Family is one of the primary agents of socialization. Family members teach the child the norms, value morals, beliefs and ideals of society. In the family the children first learn what is good and bad, what is right and wrong. They develop specific habits, traits of character, attitudes and values. The senior members of the family pass the family culture to the new generation thought socialization process. Thus, family acts an instrument of culture transmission.

(5) Provision of a home:

Family makes a provision of a home or a common habitation for its members. Here both husband and if live together for procreation, protection and care of the children. It is a place of multifarious activities. All the members of the family depend on home for comfort, protection and peace. It is that institution which provides the mental or the emotional satisfaction. Members of the family exchange their love, sympathy and affection among themselves.