Not an issues if its a right or not. If the cost of a higher education suddenly triples, a sizable portion of the populace will suddenly be cut off from the prospect of a higher education.
It should be an affordable option for everyone, not just the wealthiest.
When I went back to school I attended a local community college, mostly because of the cost. If the tuition suddenly tripled, that would have put the tuition in the area of a major college in Boston and would have effectively wiped out my chances of any type of higher education. I, most definitely, would not have been happy. Would I have rioted? Depends on how long it took me to get in to a program and how close I was to graduating. If I had just been accepted, maybe not. If I was a semester away from finishing, probably.
I would imagine its not the kids of wealthy parents out there causing a ruckus but the kids that are already struggling to pay for said higher education that just saw their future potentially being ruined by outrageous tuition hikes they can no longer afford.