i had a bike crash years ago that was my fault and i still ride. however i avoid cars as much as i possibly can and i don't drive. not from a car accident but from other trauma that was car related and not my fault. i know a lot of people who choose not to drive because of traumatic events that happened in cars but almost all of them live in places where public transportation is good enough that it is cheaper and often easy and fast to get around without a car. unfortunately i no longer live in such a place so at some point i will need to get a drivers license putting it off as long as i possibly can though.