Just that college, for me, was the opposite of this vocational training ground. It was this beautiful, theoretical, pure learning environment that discouraged placing limits on what you could do with your life.
Now, sure, some people enter the cube farm (and stay there) right after college, but I don't think it was college that made those people do that. I think it was everything else (e.g., family, the desire to have material things, the need to be "normal", etc).