I'll be 70 this next July, Granny.
I plan to ride as long as I can throw a leg over the seat, kick start it, and ride without falling and breaking a bone, lol. May even keep riding if I do manage to break a bone. And go to electric start when I can't kick start my TTR.
Rode the last time last week. Getting too slick for me. DH went out today and said he was going sideways a lot on the trails and it was FUN! Men. He's 71 and feels the same way I do about riding. In his younger days he was a successful motorcycle road racer. I have some of his plaques hanging on our shop wall. So many trophies we didn't have any more space to put them. He still has his original race bike.