shits definitely not as challanging when you're the best skier in the group and no one will follow u where u wanna go. it's not that simple to just be able to tell your roommate that sucks at skiing that you don't care to ski with him, but other people instead, when you live together in bascally what is 120 square feet. best case is to just not worry about it, go there and get a feel for what he's like. cuz even if he sucks, but is a chill kid, likes the sport hella, and doesn't talk himself up about shit he can't do (THAT SHITS FUCKIN ANNOYING) before the snow falls, then shit, having someone that doesnt mind looking at ski posters ,thats awesome, and u don't even know NOW how well that'll help the living situation to be able to look at your ski posters and be like oh my roommate also likes this shit too, so im not invading his space. be glad you at least got a skier lol, that more common ground than most universities are capable of giving to people that get assigned together.