Family denotes a group of people affiliated by a common ancestry, affinity or co-residence. Although the concept of consanguinity originally referred to relations by "blood," anthropologists have argued that one must understand the idea of "blood" metaphorically, and that many societies understand 'family' through other concepts rather than through genetic distance.
It has been argued by many sociologists, anthropologists, philosophers and psychoanalysts[who?] that the main function of the family is to perpetuate society.[citation needed] Either socially, with the "social production of children",or biologically, or both. Thus, one's experience of one's family shifts over time. From the perspective of children, the family is a family of orientation: the family serves to locate children socially, and plays a major role in their enculturation and socialization. From the point of view of the parent(s), the family is a family of procreation the goal of which is to produce and enculturate and socialize children. However, producing children is not the only function of the family; in societies with a sexual division of labor, marriage, and the resulting relationship between two people, is necessary for the formation of an economically productive household.
A conjugal family includes only the husband, the wife, and unmarried children who are not of age. The most common form of this family is regularly referred to as a nuclear family.
A consanguineal family consists of a parent and his or her children, and other people. This kind of family is common where mothers do not have the resources to rear their children on their own, and especially where property is inherited.When important property is owned by men, consanguineal families commonly consist of a husband and wife, their children and other members of the husband's family.
A matrifocal family consists of a mother and her children. Generally, these children are her biological offspring, although adoption of children is a practice in nearly every society. This kind of family is common where women have the resources to rear their children by themselves, or where men are more mobile than women.