If you’re paying for it, it’s going to be more your decision than his, but you’ll need to to confirm your suspicions with some facts. Obviously, you’ll need to know if you can afford it. Is he doing it for the wrong reason? An example is athe “doctor” dreamer kids coming out of high school, that are dead set on choosing the most “prestigious” premed university (if there is such a thing). Most of those kids end up changing their major after finding out they’re miserable.
Is it in a small college town, and he’s used to being in the city? Co-ed dorm? Some universities have some pretty creepy policies. Do some research and find out what you can. If you can’t find anything bad, and you can afford it, he should be fine.