USA Today is running a series on the financial challenges facing young people, and the last installment spotlights the problem of lack of health insurance. Nationwide, 27% of people in their 20s go without coverage, compared to 16% for the population as a whole. Of course, one of the reasons this might be the case is that many young people work in jobs that don't offer traditional benefits.
For more on the financial crunch facing young adults, see Anya Kamenetz's blog. (She's the author of Generation Debt.)