GardenGrower13:
I went to college for one year living on campus and I actually lost 15 pounds. I wasn't trying to gain at the time, to be fair. But with all the walking across campus, stress from difficult classes, executive dysfunction, and trying to understand who I was, even the unlimited food in the dining hall wasn't enough to keep me from losing weight. I was also a lot more susceptible to people's criticism of me at the time, so getting praise for the accidental weight loss was also a factor.
If you're here and you know you want to gain, and if you have a meal plan through the college, you may have a good chance of gaining quite a bit, and going to college is a reason a lot of people won't give you too much criticism for, if that's something you care about.
Good luck with your gains and your classes!
Thank you so much for your input!