Mostly white upper+middle class privileged people do that -- those that can afford it.

Intrestingly its mostly White upper+middle class privileged women - those that can afford it and get the majority of non stem degrees.

For the majority, college isn't about an education or job opportunity. It's an extension of the white female youth and self actualization.

http://nces.ed.gov/pubs2006/2006084.pdf

So non-white poor people go to college for a liberal arts education?

No, they usually don't go to college at all.