A child must be your child, step child, adopted child, foster child, brother or sister, or a descendant of one of these (for example, a grandchild or nephew).
As a broad theory, symbolic interactionism appeared in the 20-s of XX century, in the Chicago school, its founder was an American sociologist George Mead. George Herbert Mead (1863-1931) is an American sociologist and social psychologist, who is considered a true founder of symbolic interactionism.
Symbolic interactionism is often related and connected with social structure. This concept suggests that symbolic interactionism is a construction of people's social reality. It also implies that from a realistic point of view, the interpretations that are being made will not make much difference.