We're not outright paying for it. We're taking a risk on it. If we create a society that supports art and culture, then these degrees will result in good paying careers. If we create a society where 9/10 art students end up as baristas, then we're losing a slice of humanity in addition to the unpayable student debt.

We can get into a debate of whether one needs art school to have a career in art but that's not the point I was trying to make. If a university teaches 100 subjects, do we want to be a society that says only kids whose parents make over $250k can afford to be in these 10 specific majors?