You do NOT have to go to school to get a better job, thats ridiculous to think that. My father makes easy $500k a year, 2 of my uncles make in excess of 300K a year and NONE of them went to college, in fact all 3 had to repeat at least 1 grade.
College is subsidized by the government, the colleges take advantage of the student by basically extorting the money from the government through the use of student loans and Pell grants. when the student graduates he isn't necessarily smarter, but is in a whole lot more debt. The more government subsidizes it the more expensive it becomes. The majority of state run higher education's goal is to make a profit, not turn out intelligent well educated people.
Im not saying college is a waste of time, it has its purpose, unfortunately I think many of the Colleges themselves have forgotten that.