Most of the responses have been reasonable.
Only point I’ll expand on now is the money issue. You need to think through what is a reasonable spending expectation for him. Talk to your husband about this. Back in the stone age when I went to school, to my recollection the main spending outlet was food - occasional pizza deliveries, some Friday and/or Saturday nights out on the corner, and occasionally treating myself to nice lunches that were better than the cafeteria food. If I had to guess, as a freshman, it amounted to perhaps $40-60/week (if that) in 2015 dollars.
Haircuts? Maybe one or two first semester - pretty cheap for guys anyways.
Clothes? Maybe a University sweatshirt or two, but there weren’t any Kohl’s (or their equivalent back then) close by, and guys don’t really like to clothes shop anyways. You can probably take care of his needs with a few trips during the various breaks when he’s back home.
Beer? Yeah, I drank beer. A lot of the beer was free at fraternity parties (until rush was over anyways). I had some beer in my dorm room - some cases of cheap Milwaukee’s Best. And we probably tried to order beer out in local restaurant/bars, but it was pretty hard to actually get served as a minor.
His situation may be different, but I doubt it’s THAT different.
Uber? Really? He needs to take pseudo cabs around? I doubt that very much.
iTunes? Well, back in our day, we bought CDs. They were expensive (as iTunes is, more or less today). Give him a modest budget, and let him decide whether he wants to spend it on iTunes or sandwiches at the local deli. Being forced to make money choices, within reason, (rather than getting everything you want) is good and healthy.
And yes, it would probably be helpful if he had more personal connection to his spending money/budget - earning some or all of it. But that’s potentially a big switch to make mid-semester. Worth thinking about/talking over with your husband though…