I started out riding a dirt bike, so I was used to falling about once a week, usually with no injuries- I learned to get away from the bike as we were going down. I broke my toe first- I kept riding but with steel toed boots, and limped for a few months. The two broken lower leg bones put me on crutches for 3 months, and not walking very well for 6 months. I rode very little after that, and sold the dirt bike when I was 16 to buy my first car.
Some people never get back on a motorcycle after a serious crash, but almost everyone drives a car again if they are physically able after a serious car accident- the cage is safer, and there is no bus or train to everywhere people need or want to go. We all weigh the risks and benefits, and make our choices.