My young fella was 17yrs old, app brick layer and worked all day in shorts, singlet and slip on work boots and roda a 250cc trail bike home from work only putting on hiis helmet.
Jammed on the front brakes doing about 60 and went over the handlebars.
Broke his right thumb and left wrist. Not a real problem.
He claimed the worst part of the crash was when the nurse used what he called a wire brush to scrub all the gravel out of his road rash down both legs shoulders and arms.
Helmet was a wreck.
Every time I ride, I think of his injuries and even in 40 deg heat, still wear my jacket, gloves and protective pants and boots.