The open road: it’s part of the American dream. Or, at least, it used to be. A new study finds that 16- to 34-year-olds without driver’s licenses rose to 26 percent in 2010 from 21 percent a decade earlier. At the same time, biking, walking, and other driving alternatives rose among young people in the past decade. Tony Dutzik is a senior policy analyst at the Frontier Group and co-author of the study. Takeaway listener Emily is a 25-year-old who rarely drives, and didn't get her license until she was 19.