There are multiple perspectives to understand this inherent motivation to interact with others.
According to Maslow's hierarchy of needs, humans need to feel love (sexual/nonsexual) and acceptance from social groups (family, peer groups).
Despite stark differences in their social backgrounds and likely economic prospects, Arnett was struck by the similar answers he heard from his young respondents.
They may be regulated by law, custom, or mutual agreement, and are the basis of social groups and society as a whole.
The study of interpersonal relationships involves several branches of the social sciences, including such disciplines as sociology, communication studies, psychology, anthropology, and social work.
Interpersonal relationships are formed in the context of social, cultural and other influences.
The context can and may and perhaps will vary from family or kinship relations, friendship, marriage, relations with associates, work, clubs, neighborhoods, and places of worship.