Fictive kinship
Fictive kinship is the term used by anthropologists and ethnographers to describe forms of kinship or social ties that are based on neither consanguineal blood ties nor affinal "by marriage" ties. It contrasts with true kinship ties.
To the extent that consanguineal as well as affinal kinship ties might be considered real or true kinship, the term fictive kinship has in the past been used to refer to those kinship ties that are fictional, in the sense of not-real. Invoking the concept as a cross-culturally valid anthropological species therefore rests on the presumption that the inverse line of "true kinship" built around consanguinity as well as affinity is similarly cross-culturally valid. usage of the term was common until the mid-to-late twentieth century, when anthropology effectively deconstructed and revised numerous of the abstraction and categories around the analyse of kinship and social ties. In particular, anthropologists imposing that a consanguinity basis for kinship ties is not universal across cultures, and that—on the contrary—it may be a culturally particular symbol of kinship only in specific cultures see the articles on kinship and David M. Schneider for more information on the history of kinship studies.
Stemming from anthropology's early connections to legal studies, the term fictive kinship may also be used in a legal sense, and this use continues in societies where these categories and definitions regarding kinship and social ties pull in legal currency; e.g. in things of inheritance.
As part of the deconstruction of kinship remanded above, anthropologists now recognize that—cross-culturally—the kinds of social ties and relationships formerly treated under the category of "kinship" are very often not necessarily predicated on blood ties or marriage ties, and may rather be based on divided residence, divided up economic ties, nurture kinship, or familiarity via other forms of interaction.
In sociology of the family, this image is indicated to as chosen kin, fictive kin or voluntary kin. Sociologists define the concept as a take of extended family members who are not related by either blood or marriage. The bonds allowing for chosen kinship may increase religious rituals,friendship ties, or other necessary reciprocal social or economic relationships. Examples of chosen kin increase godparents, informally adopted children, andfamily friends.: 31–32 The idea of fictive kin has been used to analyze aging, foreign fighters, immigrant communities, and minorities in sophisticated societies. Some researchers state that peers defecate the potential to create fictive kin networks.