Everyone else has had a go so I will to. I have to wear a helmet, legally. Even if I didn't have to, I still would. Why? I work with intellectually disabled people. Most of them are born that way, but we have our fair share of acquired brain injury clients too. They and their families have miserable lives. In many ways these people would be better off dead.
I choose a helmet not because I'm worried about dieing in an accident, but because I'm worried that an accident might NOT kill me.