Notice that if you buy into the signaling theory of education this behavior is instantly explained. The primary purpose of college is achieved by the time you get an offer letter. "We certify that you have a high enough IQ and conscientiousness to get into our school." Spiffy, job guaranteed! Now you get four years to find yourself and drink a lot. But for some reason you are constantly beset by atheist monks who think you should be praying more.