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.
Crossman further explains that the symbolic interaction theory analyzes societies by studying the subjective meanings imposed by people on objects, behaviors and events. Experts believe that the behaviors of people are based on their beliefs and not simply on what is objectively true.