* Regulates mating, reproduction and child rearing in a socially approved way
* Regulates sexual division of labour
* Creates a set of family relationships that can provide for the material, educational, and emotional needs of children
* Legitimizes children
* Provides women in technologically simple societies support
* Defines social positions of individuals e.g., adulthood
* Establishes legal rights and interests e.g., over property, children
* Serves as an instrument of political relations between individuals and groups