Legally, childhood is defined as the period of minority, which lasts from birth until adulthood (majority). The age of majority varies by place and purpose. For example, in the United States, at age 1...Legally, childhood is defined as the period of minority, which lasts from birth until adulthood (majority). The age of majority varies by place and purpose. For example, in the United States, at age 18, you are considered an adult for military service, but a minor for buying alcohol. Biologically, childhood is defined as the stage of a human organism between birth and adolescence.
