Go for it! I believe when your times up it's up & never miss an adventue & I've lived that way all my life. A missed adventure is gone for ever. Good Luck & Enjoy!
I know two octagenarians living full time on the road and loving life. If you think you're up for it give it a try. Take some road trips or go camping for an extended period. See how you do.
You can do whatever you want to until you can't physically do it anymore.
Not possible to predict what how old you will be at that point in time.
Right now there is a woman of 102 who is running races. For sure she could go RVing.