It is my humble opinion that we molly coddle our children WAY too much. Life is dangerous and kids need to learn how to deal with it and not be afraid of everything because we, as parents, are so hyper sensitive to their safety. I mean of course we all want our kids to be safe, but they also need to be able to think on their own and make the right decisions on their own without Mom and Dad jumping in to "protect" them.
When I got my first car, my father drove with me to work once and then let me loose. It was absolutely terrifying. I got lost more than once in really crappy parts of DC. But I overcame it, and learned how to drive in that mad place. My proudest moment was when I was successfully able to cut off a DC taxi cab.
That takes skill and bravery, because those guys are nuts!
Anyway, my point is to stop getting the vapors over your kid having to deal with ####ty drivers. It's a good life skill to learn.