I was a ski instructor in college and it was a great experience for the most part. I mostly taught beginners because I didn't have any certifications and I wasn't required to get any either which was nice. It was fun teaching and got to ski for free and there aren't many powder days in PA so that didn't matter much. I got pro deals and best of all I think I learned more myself during this time. When I wasn't teaching they would sometimes have us do advanced training clinics which definitely made me better. One of the lead managers at the time was a total D bag which was unfortunate. I think it really depends on your circumstances, what your goals are, and what people you'd be working with. Thanks