A young adult is generally a person ranging in age from their late teens or early twenties to their thirties, although definitions and opinions, such as Erik Erikson's stages of human development, vary. The young adult stage in human development precedes middle adulthood.
Adult development encompasses the changes that occur in biological and psychological . The key stages that he discerned in early adulthood and midlife were as follows: Early Adult Transition (Ages 16–24); Forming a Life Structure ( Ages.
Many cultures around the world value late adulthood more than any other, arguing that it is at this stage that the human being has finally acquired the wisdom.