Adolescents and old people are both often segregated from the rest of society: young people are isolated in schools, and many old people in retirement communities, assisted-living facilities, and nursing homes. (2) Also, both groups tend to be poorer than young adults or middle-aged people: adolescents because they do not yet have the education or experience to command high salaries, and old people because they are retired and living on their savings and social security. (3) Third, independence is important for both groups—they are conscious of wanting it, whereas young adults and middle-aged people take it for granted. (4) Adolescents want to become independent of their parents; old people want to keep their independence and not have to rely on their children or on social institutions. (5) Fourth, they both tend to have a relatively large amount of leisure time or, at least, time that they can choose or not choose to fill with study or work. (6) By contrast, young and middle-aged adults typically spend most of their time at their jobs or taking care of home duties such as child-rearing