While I sometimes think I'm missing out, I quickly settled for kick scooters when I was younger; I just wanted something simpler and smaller than a bike to ride around and a folding adult scooter is exactly that - apart from an occasional curb hop, no tricks or aggressive riding, but I can push hard and easily maintain a pace between a fast run and a sprint on flat ground. I actually took mine out again yesterday after a break of a few years. I get to carve a little bit, I have front and rear brakes, and I always get complements.
I gave up skating and eventually wake boarding (tore an ACL) for the same reasons. Surfing is something I feel like I can do forever. Snowboarding is also fine a few times/year. If I moved back to the mountains, I could see where doing it all season would end up also being pretty rough on the body though.
Something I've been doing a lot the past few years which is surprisingly not that rough on the body is jiu-jitsu. I did get dinged and bruised when starting out, but nothing like I used to get skating or wake boarding.
When I went to my surgeon he said I was the 4th wakeboarder he had done that summer and asked me why it was so rough on our knees lol...
[1] https://www.youtube.com/watch?v=dC3TEqcyT24
EDIT
It is amazingly fun though. If you can ride behind a nice boat with big wake and speakers so you can jam out while riding, it's a great experience. Plus, wakeboarding is social and always takes a minimum 2 people. Learn to drive the boat properly and always give some gas money, and you'll be invited over and over.
Tricks are another animal, but just cruising around can be learned in an afternoon in a parking lot. I picked it up as an adult. I mean there are bulldogs who can skate if you need motivation.
I wasn't even trying anything complicated yesterday; just a simple shuv-it on flat ground at a skatepark. Fell sideways onto my arm and felt a heart-sinking crack.