Well there are, of course, a lot of points to be made, the most basic of which is that education is simply too expensive.
A more policy-oriented point, however, is that student loan debt and interest acts as a remarkably regressive tax: persons from working and middle class backgrounds pay millions of dollars simply in student loan interest every year, which acts as a millstone for consumption, career mobility, and starting a family. Meanwhile, wealthy persons whose parents paid for their education are unfettered. It makes it such that, even though education and academic advancement are meant to be class equalizers where normal people can level the playing field with wealthy elites, it actually creates an additional system of class tiering.