The biggest risk of going to college is dropping out: An unfinished degree barely increases your earnings while costing money and time. Vocational two-year degrees have a stronger positive effect on earning power than academic ones do… On average, college pays off, though not always. The wage premium comes with risk. For every degree short of a graduate degree, there’s a decent chance that a good high school graduate will out-earn you.
Also, other studies are claiming that
Overall, 56 percent of those who started college in 2007 have finished their coursework on any campus, according to the research arm of the National Student Clearinghouse, a nonprofit organization that works with colleges to verify students’ enrollment and graduation status.