Anyone who thinks it's impossible to be "too poor" for college is either rich or ignorant. But I repeat myself.
I mean, yea, you could take out a student loan, work a full-time $8/hr job while taking 16 credit hours of classes for four years, and have a nice $15k debt to pay off still after graduation because you were only paying off the interest during your classes. Not to mention rent/campus housing. Or food, or all the other expenses.
I mean, yea, it's possible to pay your way through college yourself, but right out of high school it might be infeasible altogether, especially if you're not rich enough to directly pay for school, but not poor enough to get government aid. "Middle class poor", if you will. In fact, my very definition of "middle class poor" is any family that can pay their daily expenses but can't get the aid or loans required to pay a child through college. It's more common than you think.