I did the same, the problem is you're living in fantasyland if you think kids today can do the same thing.
I played Pulaski motor during my college years and also graduated with no debt. I paid 100% of my own freight, no grants, no scholarships, no help from my family. I paid it all out of pocket. I could make enough money in a summer to pay for school and still have enough left over for a car payment/insurance, and still afford to hunt/fish and recreate. I supplemented my summer work, working part-time for a friend who had a taxidermy business when my college workload wasn't too demanding. My last 2 years of college, costs of tuition was going up very fast. So, my last 2 semesters, I chose to work 6 months and go to school for only one semester a year. I couldn't work just the summers anymore like I had 2-3 years prior and swing everything.
That scenario isn't happening in 2019. The cost of everything has went through the roof and wages have not kept up with those costs, at all. Whether college tuition, rent, food, clothes, cars, insurance, medical care, fuel, electricity, you name it.
If, by some miracle, a person has a summer job in 2019 that pays well enough that they can get through college debt free like I did...I say they better just keep that job and work it full time.
It wears me out listening to people trying to compare what they did in the past, to what is going on now. Its simply not a fair comparison.