In most societies, the family is the principal institution for the socialization of children.
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.
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, it is necessary for the formation of an economically productive household.
) is a group of people affiliated either by consanguinity (by recognized birth), affinity (by marriage or any other relation ship like siblings families etc..), or co-residence (as implied by the etymology of the English word "family") or shared consumption (see nurture kinship), or some combination of these.
Members of the immediate family includes spouses, parents, brothers, sisters, sons and/or daughters.
Members of the extended family may include grandparents, aunts, uncles, cousins, nephews, nieces, and/or siblings-in-law.
Sometimes these are also considered members of the immediate family, depending on an individual's specific relationship.
The field of genealogy aims to trace family lineages through history.
Family is also an important economic unit studied in family economics.
One of the primary functions of the family involves providing a framework for the production and reproduction of persons, biologically and/or socially.
This can occur through the sharing of material substances (such as food); the giving and receiving of care and nurture (nurture kinship); jural rights and obligations; and moral and sentimental ties.