The restrictions still exist of course: the administrations determine through funding the sizes of different departments. Based in large part by demand for each major by the students. (This gets complicated because some majors can teach more students per dollar. Art history is relatively cheap to teach. Biochemistry is much more expensive per student because of the lab courses. Also some majors get their primary support through research grants not tuition. Biochemistry gets lots of grants. Art history not so).
But your argument is mostly that student loans have removed the student side of this selectivity and the number of students deciding to major in a “less directly vocational” area, such as art history, has increased as a result. Frankly I haven’t seen this and I wonder if you’ve located statistics supporting this idea. Students who take out loans are only too aware they have to pay them back. Loan forgiveness is retroactive; how could it have altered major choice?
If you are advancing that a free education would broach even this hypothesized constraint I have a convincing argument against: it did not when there was free higher education in California. We were not overwhelmed with angry gangs of unemployed art history majors.
As a backdrop to this and to some of your recent answers, I just have to reiterate something.
What do you suppose the problem is? Because Bernie thinks there's a problem. And Elizabeth Warren thinks there's a problem. And in 2016, Hilary Clinton thought there was a problem. For that matter, Betsy DeVoss thinks there's a problem. Why do these people think there's a problem?
What I see, though, is that Bernie's solution to the problem is to not solve the problem, but instead shift the cost of the problem to someone else. I don't see anything in his plan about easing regulatory burdens. I don't see anything in his plan about addressing the factors that lead to high costs. I don't see anything in his plan about changing the way people are prepared for life in the workforce that will offset the economic cost of four years with no pay while receiving high services. In fact, I see in his plan, very specifically, that people should be able to do all the things they do now, and more, but not be burdened by the cost of things so that they can become environmentalists, teachers, social workers, and artists instead of having to take a job that would allow them to pay off their loans. (That's directly from the plan, if you can call that set of platitudes a plan.)
So, maybe my analysis of the root of the problem is all wet, but somehow, an awful lot of people seem to be burdened by student loans, or possibly unable to pay them at all. There are enough of those people that politicians are saying, "Vote for me and I'll make someone else pay off your debt!" (They usually phrase it differently.)
What went wrong that made this situation come about?
To my way of thinking, the people in that situation must have made some bad decisions, and there are a lot of those people, which points to some sort of systemic problem. What is it?
Well, I've offered some possible explanations for that problem, and people seem to think my explanations are wrong, but one thing I'm certain of is that those bad decisions were made by people when they were 18 years old. I think somehow, somewhere, that is actually part of the problem.