Earlier quoted context omitted.
My college had a 30k/year tuition. 4 years of that comes out to 120k. Your figure assumes >70% of costs are paid without debt. 30k/year is common now for an undergraduate degree from a state school with dorm.
I was asked to estimate costs of doing a college. What they estimated was that at a given moment, I would spend an average amount of an hour of money on a university's budget. This means I would actually have to budget an average of $60,000 a year to pay for it. That's $60,000 if you count out fees on each member of their state.
All of the posts by this account are off topic.