Over the same time period that loans have become easily obtainable (via US government backing), massive amounts of regulation has also been imposed on colleges/universities.
While people love to talk about football stadiums, luxury dorms, and other amenities, one of the largest increases in the cost of running a college is administrators to keep up with regulatory demands.
I'm not claiming administrators are solely responsible, only that it's not as simple as "Uncle Sam gives students money and college spend every penny".
Additionally, public funding of colleges has dropped over the same time period. As of 2018, state funding of public colleges was down ~$7 billion since 2008. It was slashed during the down economy, but never brought back up again.
[0] https://www.experian.com/blogs/ask-experian/state-of-student...
The rapidly increasing headcount growth, including professor headcount growth is driving the increased cost which is driving increased borrowing.
Universities need much bigger class sizes, many fewer professors, and many fewer administrators. Overall headcount at universities needs to shrink by ~70% to get the cost back inline.
No politician, or university president is going to say that because it would be so brutal to oversee. But... students are suffering with massive debt loads and someone is going to have to make the right choices to cut those costs.
[0] https://washingtonmonthly.com/magazine/septoct-2011/administ...
I wonder, however, if administrations just take on a life of their own and grow bounded only by available budget. It seems like this happens in the private sectors with layer upon layer of management.
We have several teams of developers pushing out state-level regulatory updates to our software (and these updates are frequent and often done on short notice), plus more teams doing annual federal regulatory updates.
And again, I'm not claiming this is the largest contributor, only that it's one of many reasons (easy access to loans included as well).
"We find a pass-through effect on tuition of changes in subsidized loan maximums of about 60 cents on the dollar, and smaller but positive effects for unsubsidized federal loans. The subsidized loan effect is most pronounced for more expensive degrees, those offered by private institutions, and for two-year or vocational programs."