Going through the motions of going to school is a waste of time if you don't take it seriously. One can "grow up" or "see the light" by doing committing to anything substantial and seeing it through, and there are much cheaper ways to accomplish that than going to college.

For example, let's say one isn't sure about going to college. Instead of spending 4 years and a bajillion dollars to find out if college is right for you, and it might not be, how about washing dishes for a few months at a local restaurant? For one, you might love washing dishes. Two, a lot of stuff can come into focus when you spend doing something you don't really want to do. Just a thought.