id be hesistant to recommend it. bone loss occurs steadily after age 40-45 or so. falls are a part of skiing and snowboarding and can cause fractures in even young people.
Ah, the arrogance of youth.
The only real difference I've found at 50 versus 20 is that 1) it takes me longer to recover from the various bangs and bruises or hangovers and 2) when I'm done, then I'm done. If my legs are rubber at 2:30, then they're not coming back that same day.