The guys I ride with are a few years younger than me and thus a few years stronger.
Only due to my superior bike handling skills can I keep up, and then only on technical trails.
They smoke like chimneys and just keep on going.
Oh wait: I can beat then at night, even with their $200 lights.
The fast decision-making requirements of mountain biking dovetail well with my ADHD - the only area where they are a benefit!
Smoking of the pot just slows me down on the trail and makes my line sloppy.
I’ll stick to known trails. May hit a bear or an elk, but I consider that better than a knee-wrenching at my age. Not too many physical activities are improved by being stoned.(I know...your buddies would say “if you can’t ride baked, you shouldn’t be riding.”