Today five million people in the United States between ages 18 and 34 live alone, 10 times more than in 1950. But the largest number of single people are middle-aged; 15 million people between ages 35 and 64 live alone. Those who decide to live alone following a breakup or a divorce could choose to move in with roommates or family. But many of those I interviewed said they chose to live alone because they had found there was nothing worse than living with the wrong person.
