Adulthood Adulthood refers to a section of lifespan in which people mature in all aspects. Adults can be independent and can decide for their lives' issues. Legally they are responsible for their actions. On the one hand people have high expectation of them. They expect them not to act like a child. But I think adults can act children. Adults usually forget themselves. Those adults who get married usually go without for their children and spouses. But I think each person in every section of life should pay attention to himself, laugh loud, do some exercise, dance!, put on colorful clothes, and be happy. Some of adults have poor self-esteem and don't follow their favorite activities.