After college you can go work only a janitor or a sales manager.
I think college - it's a good time to learn anything practically important for the further job. Probably you should learn it yourself, but college's atmosphere helps you in it.
to get more money to have money to send your children to college
So you suppose that a college helps to get more money?
yep. There are many professions too hard to occupy without college degree or at least unfinished degree.
