Ok, I'll give this a shot.
Young people by definition are young and inexperienced and usually have not yet had the time or ability to make large sums of money.
The cost of college has outpaced inflation every year for years. There was a time that somebody could work a Summer job and wash dishes in the cafeteria for 10 hours a week to make enough money to go to school. That is not true today.
I have seen kids from poor backgrounds face this. They either end up dropping out or having unrealistically high student loans that will stop them from enjoying adult life at all.
Financial aid professionals speak of the 1/3-1/3-1/3 rule . Parents, student jobs, loans each paying 1/3.
As for loans, I say take what you need , but need what you take...and be realistic about where you want to go. Avoid debt if at all possible .
I do believe some kids can come up with the money themselves but it would require quite the entrepreneurial spirit at a very early age .
On the flip side, I went to a state college that specialized in working adults. I graduated with a bunch of people who did it on their own while working full time. Now, it often took them eight or ten years to graduate. And many of them did nothing but work and go to school. And the school itself doesn't have a great reputation. Some of them had loans, but since a full load was around $8k a year, there loans upon graduation tended to be more in the $20k range than the $50k range. And subsidized since they tended to be under the limit. But to federal loans, they had to go full time - so they were working 40 hours to support themselves (and in some cases families) and carrying a full load so they could get loans - a lot of people who were in that situation didn't make it through.
I have a good friend who teaches at a community college. She has had a number of students who live in their car and shower in the school locker rooms so they can afford school.
But my kids - I can at least afford to make sure that they aren't trying to work full time and go to school full time so their tuition bills get paid. Or that they aren't deciding between tuition and an apartment. It might mean trashed carpet and some cheap vacations.