Tony,
I had my most recent bicycle mishap last July, an old gent ran a stop sign and plowed right into me as I was turning left...lots of injuries, still recovering, but that's not the point here.
I was hit when I was 18 years old, landed in a cemetery with few injuries.
I was hit when I was 29 years old, much trauma, permanent physical injuries, changed my life.
And just last July at 69 years old.
So strictly by the arithmetic progression, I should be good till I'm around 200 years old.
BTW, I have a full reverse shoulder replacement on my right side, some of the doctors have told me to NEVER fall on it, but it hasn't stopped me from skiing (back country, no trails), hiking, paddling, cycling, camping, etc.
And yes, I've fallen on it on snow and on pavement.
My opinion? Go for it. I can't see living without doing the stuff that makes me who I am, and I suspect you might feel the same.
With that said, I do pay close attention to my surroundings and situations, particularly since I do much solo activities.
The whole live forever thing probably ain't gonna happen either way. Probably.