Around 30 percent of adults in the United States over the age of 50 are single, and many enjoy being on their own. Older singles were less likely to express a desire for a romantic relationship, and research suggests that people’s satisfaction with being single increases as they enter middle age. Dr. Bella DePaulo, a single 70-year-old social scientist, points out that being single in one’s 60s or beyond comes with self-awareness and self-assurance that come with age. Research suggests that self-confidence peaks between the ages of 60 and 70.