I want to reiterate again that the cost of higher education is a bit overstated.
I will take Florida, where I live, as an example.
1. Tuition and fees at state universities in Florida are about $6,400 per year (using the University of Florida's numbers).
2. Any Florida student who takes the requisite high school classes, averages a 3.5 high school GPA, scores 1290 on the SAT and performs 100 hours of community service gets free tuition for 120 credit hours.
3. Any Florida student who takes the requisite high school classes, averages a 3.0 high school GPA, scores 1170 on the SAT and performs 75 hours of community service gets a 75% tuition scholarship for 120 credit hours.
4. Total cost per year, including room, board, books, transportation and living expenses is $21,000/year.
5. Half of all students at UF receive need based aid.
6. Of those that receive need based aid, the average aid package is $7800.
So for those who are very smart, but very poor, you might be looking at as little as $6000 a year in personal responsibility for all costs. If a student worked 10 hours per week on the average at $10/hour, that's $5000 per year of that $6000, leaving about $4000 total for the student and family to pay (including via loans).
For mediocre students of non-poor families, the total nut will be $21,000 per year. Using that same $5000 per year in earnings number for the student, that means that the student and family would be on the hook for another $16,000 per year. Admittedly a more daunting number. But remember, we are not talking about the poorest of the poor, but rather families with some resources.
And we are talking about all living expenses - some of these expenses would be present regardless of whether the kid goes to college or not. If the student were to live at home and commute to school, they may be looking at free tuition and no additional living expenses as compared to not going to college. That would leave about $1000-$1500 per year in books, supplies and student fees, an amount that would easily be covered by part time work. Alternatively, if we were talking about a marginal student who lived at home and commuted, that number would climb to about $8,000 per year. Again, $5000 of that could be covered by part time work by the student, leaving an additional $3000/year to come up with.
What is creating crushing student debt isn't the cost of education, but rather the cost of choices. Choices to go away to college instead of commuting. Choices to go to private institutions. Choices to change majors or take more than 4 years to graduate.