My brother was riding his motorbike when a car turned across his path having not seen him, he was doing 30mph and was launched off the bike, flew over the car, and landed directly on his elbow.
9 hours of surgery rebuilding his arm and now it’s half metal and has about 30-45 degrees of movement. There was serious talk about amputation early on so he kinda got lucky (also lucky to land on an arm rather than his head obviously!)
Motorbikes may be fun and economical but fuck driving them around other cars, eventually you’ll run into a bad driver and if you’re unlucky that could be the end for you.