one immediate unintended consequence I can think of is flattening the distribution of net tuition paid. For example, a 40k sticker price University might cost 4

one immediate unintended consequence I can think of is flattening the distribution of net tuition paid. For example, a 40k sticker price University might cost 40k to a wealthy foreigner, 25k to an upper middle class student, and be practically free to a poor student (after need based grants and scholarships, not loans). Tuition is capped at 20k, so suddenly everyone has to pay 20k, at least if the university wants to maintain the same income. Of course, the numbers are already flatter than that at most public institutions but the general effect could still occur. Not saying tuition caps are necessarily a bad idea, but I can see potential downsides.