"Twenty years later, Quayle’s words seem less controversial than prophetic. The number of single parents in America has increased dramatically: The proportion of children born outside marriage has risen from roughly 30 percent in 1992 to 41 percent in 2009. For women under age 30, more than half of babies are born out of wedlock. A lifestyle once associated with poverty has become mainstream. The only group of parents for whom marriage continues to be the norm is the college-educated."

Read more: Isabel Sawhill, Washington Post