Stat: 7. On average, Americans are waiting nearly seven years longer to get married than they did in 1968, according to the U.S. Census Bureau. Story: Does putting off marriage mean people no longer want to say "I do?" To learn more about this trend, we spoke to couples who are waiting to wed—in the first installment of our four-part series on today's American family. Marriage historian Stephanie Coontz also offers insights.