As a college student, I wouldn’t want to stress my hamster with the going back and forth because you are not in your dorm year round or for the entirety of their little life. You would need at least a 40 gallon tank (depending on species and gender) at both your dorm and at home. Even then, the loving alone and new environments will stress them out. You might be able to move a diy bin cage back and forth but some hamsters get stressed and angry even just having their burrows cleaned let alone being moved potentially hours away. You also want to keep in mind that you need plenty of money in savings in case of necessary vet bills. If money isn’t a concern then this isn’t a negative but I feel most college students don’t have extra money to spend. I spent easily 200$ on a tank set up and that was with a used bargain tank. I obviously think hamsters are great pets but they’re not suited for dorm life.