Marriage, particularly among the working class, has gone out of style. In 1960, 72 percent of adults were married. Today, barely half are. The numbers for blacks are far more stark. The well-off still get married, though, which is a big reason why they're well-off. "It is the privileged Americans who are marrying, and marrying helps them stay privileged," Andrew Cherlin, a sociologist at the Johns Hopkins University, told The New York Times.