I snowboard, tried a week of both skiing and snowboarding back in my early 20's, then took it up again in my 40's when I lived in Italy
I'm in my 50's and still enjoy it, not too slow either as my time in Italy was going out friends that skied so I had to hustle a bit to stay with the pack
When I'm in my 70's I want to be that cool old snowboard dude still shredding the slopes
Older than that then I'll probably slow down a bit and take up cross country skiing