> some massive college bills
In the late 1980s I started a Computer Science program at Cal Poly Pomona https://www.cpp.edu/ If memory serves, my tuition for a quarterly full load was less than $300. That's not per credit, that was for as many classes as I wanted. Books added up to a bit less.
Working at Jack in the Box and later McDonalds, I was making minimum wage which was I believe $4.25/hour. Assuming I kept 70% of that after taxes it took me about 185 hours to pay my combined tuition and books, which comes out to about 19 hours a week over the 10 week quarter.
And I did, in fact, work about 20 hours a week.
This doesn't include housing, but it was also fairly affordable. I believe another 10 hours a week could have covered some basic shared rent. I had a place to live for free, fortunately.
EDIT: I haven't done any math for how this would look today, but I'm pretty sure it's not quite so friendly.