You might think the days of paying for college are behind them, but 11 percent of respondents age 55 to 64 have minor children. And 41 percent of the people in this age group responded that they know how much they need to save for their kids' college, and that they're on track to meet that need. Unfortunately the Gen Xers, 65 percent of whom have minor children, are the worst prepared, with only 14 percent saying they are on track to pay for college.