i don't agree with this at all. are you saying that kids who go to school for skiing are wasting their money?
as far as your extended ski vacation thought, i am a full time kinesiology major who skis 5 or 6 days a week during the season, and finished the year with above a 3.0 gpa. sure, i could have spent all my time studying and gotten straight A's, but what's the point? skiing helps me relax and not worry about shit like school. if i had spent all my time studying i would certainly not have been as happy as i was during the school year.
overall, i think it's important to have something to escape to besides partying or smoking weed in college in order to take your mind off studying. i guess what i'm saying is what's the point of not making yourself as happy as you can be during the school year?