In my state, you can drive at 16, but no passengers but parents until 17, and until 18 there is an 11 p.m. curfew. These laws have cut way down on teen crashes.
The required drivers ed is still a joke, and driving skills required to pass the test are minimal. If you can go around the block (all right hand turns) and stop at a stop sign, you're in. I kid you not.