Jazz can absolutely go the 4 years of Harvard. Unlike state schools and most other universities (and I could be wrong about this), they likely have a more freeform approach to required classes. Most schools require you pass a Math, English, History, Science, and some other Humanities course, over the first two years, before you can finally do something remotely related to your major. Harvard being an Ivy League will intentionally pick students with unique perspectives/goals and let them run wild (if they’re talented enough—or have enough familial clout.) Jazz isn’t going to be a physicist, he’ll do Humanities, or get a “Social Justice Degree.”
Disability help in colleges is very generous too. With a doctor’s signature you can range from getting extra time for tests (up to an hour extra in some programs) to having your own tutor. Between that and TLC money Jazz could academically survive by virtue of being a child troon and assistance by the university alone. His hardest task will be showing up to class.
Making friends your first year of college is hard. You may have casual friends, but most of the time the people you’re closest to your first year there aren’t the people you are the next 3+ years, whom (hopefully) you’ll have the rest of your life, including a partner. Going to a new city is doubly difficult to make friends and keep in touch with the few you have.
You’re living in cramped quarters and will likely hate at least one roommate (or have one roommate hate you.) With Jazz’s money he’ll probably have his own room, which won’t help with the abject lonliness. He’ll walk downstairs to the main dorm door, get food delivered, and shuffle off back to his room. I saw people gain up to 50 lbs my first year of college before my eyes, and Jazz is already so large he could easily gain 70 lbs. Not to mention his quickly shrinking amhole.
Jazz is fucked. (And will never be fucked.)