My girlfriend decided she wanted to start snowmobiling with me this year, so I got the training DVD from the MN DNR. I sat with her last night and went through the training course, as a refresher for myself. After going through that, I think one of the issues out there is the poor training that is offered. The DVD claimed it was a "2014 edition", but it was easy to see it was the same training since the mid-late 90s by the snowmobiles on there and the digital technology used. I have to say both of us were outright BORED going through this, which didn't help us stay engaged to learn what they were trying to teach.
I think one thing that would help would be to update the training to today's standards and have updated information on there to make it more relevant and fun to go through, and it wouldn't be too expensive to do. I do agree that inexperienced riders need to start out on a lake or field to learn the machine before hitting the trails to gain on-hands experience because I understand there is a difference between what you are trained to do and what you do in real-life situations, but updating the training would certainly be a good step for proper off-course learning.
Exactly how I trained #4 daughter set up trail at home then expanded to FRs then real live trail 17 & 6 in Phelps on a weekend. No way I would have turned her loose with 2 way trail traffic from the get go.