I too have pondered this, but as a previous poster said, risk management, risk mitigation and avoidance are all related.
My first foray into motorcycles was a birthday present from dear old dad - Yamaha 80 in the late 70s at the whopping age of 11, back when shorts, tshirts and whatever shoes you happen to have on was ok. Since then I have had 6 different bikes (mostly adventure related - enduro for you old folks) and am a big proponent of ATGATT (all the gear all the time) and until last October was completely void of accidents personally, but witnessed two accidents, one was my father, and another a good riding buddy who previously raced motorcross. Their accidents were life changing and neither of them ride anymore.
One Sunday in October I jumped on a KTM 250 to take a spin around the back yard and was practicing low speed balance drills and wheelies (not everyone can be Graham Jarvis). Needless to say, I ran out of talent on the wheelie and bike came out from under me. Screwed up 5 different parts of my left knee, and am still in the process of rehabbing the cadaver ACL and miniscus. I LOVE LOVE LOVE motorcycles as there is no better feeling that a nice ride to clear the cobwebs from the old brain. But now I am in the middle (ok, early stages) of getting my PPL, and there are so many tasks like just doing preflight that are complicated by my knee injury. Most people don't consider the unintended consequences, but even checking the tire pressure is a strain on the knee.
Either riding or flying, do it often, and safely !