There's a good reason for that. In most states, no formal training is required at all, and most people learn to drive from a friend or relative who most likely isn't very good at either.

Licensing requirements vary by state, but in Florida, you have to pass a simple signs test, a ludicrously easy written test in your choice of languages, and the "road" test is given in a fenced in course with no other cars, and only large enough to get up to 10 mph.