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a family of Ouagadougou, Burkina Faso in 1997 A family is a domestic group of people, or a number of domestic groups linked through descent (demonstrated or stipulated) from a common ancestor, marriage or adoption. Families have some degree of kinship.
In Western culture, a family is defined specifically as a group of people affiliated by blood or by legal ties such as marriage or adoption. Many anthropologists argue that the notion of "blood" must be understood metaphorically; some argue that there are many non-Western societies where family is understood through other concepts rather than "blood."
Article 16(3) of the Universal Declaration of Human Rights says, "The family is the natural and fundamental group unit of society and is entitled to protection by society and the State".
According to sociology and anthropology, the primary function of the family is to reproduce society, either biologically, socially, 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 a husband and wife, is necessary for the formation of an economically productive household. In modern societies marriage entails particular rights and privilege that encourage the formation of new families even when there is no intention of having children.
The structure of families traditionally hinges on relations between parents and children, between spouses, or both. Consequently, there are three major types of family: matrifocal, consanguineal and conjugal. (Note: these are ideal families. In all societies there are acceptable deviations from the ideal or statistical norm, owing either to incidental circumstances, such as the death of a member of the family, infertility or personal preferences).
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.
A consanguineal family consists of a mother and her children, and other people — usually the family of the mother. 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 conjugal family consists of one or more mothers and their children, and/or one or more spouses (usually husbands). This kind of family is common where men desire to assert control over children, or where there is a sexual division of labor requiring the participation of both men and women, and where families are relatively mobile.
The preceding types of families are found in a wide variety of settings, and their specific functions and meanings depend largely on their relationship to other social institutions. Sociologists are especially interested in the function and status of these forms in stratified, especially capitalist, societies.
Non-scholars, especially in the United States and Europe, use the term " nuclear family" to refer to conjugal families. Sociologists distinguish between conjugal families that are relatively independent of the kindreds of the parents and of other families in general, and nuclear families which maintain relatively close ties with their kindreds.
Non-scholars, especially in the United States and Europe, also use the term extended family. This term has two distinct meanings. First, it is used synonymously with consanguinal family. Second, in societies dominated by the conjugal family, it is used to refer to kindred (an egocentric network of relatives that extends beyond the domestic group) who do not belong to the conjugal family.
These types refer to ideal or normative structures found in particular societies. In any society there is some variation in the actual composition and conception of families. Much sociological, historicalHistory is often used as a generic term for information about the past, such as in "geologic history of the Earth". When used as the name of a field of study, history refers to the study and interpretation of the record of human societies. The term histor and anthropological research is dedicated to understanding this variation, and changes over time in the family form. Thus, some speak of the bourgeois family, a family structure arising out of 16th and 17th century European households, in which the center of the family is a marriage between a man and woman, with strictly defined gender roles. The man typically is responsible for income and support, the woman for home and family matters. In contemporary Europe and the United States, people academic, political and civil sectors have called attention to single-father-headed households, and families headed by same-sex couples, although academics point out that these forms exist in other societies.