Re Redleg’s Third Comment: You got one thing right, i.e., there should be a maximum age on driving. Otherwise, you completely miss my point, which is that driving age should be based on relevant facts, particularly the driving records of drivers old enough to reach the pedals of a car. And, yes, the determination or driving age or speed limits should be based on the weighing of risks versus the need and/or rights of people to drive cars.
And, for your information, I do not allow 12-year-olds to drive on my private 1200-acre ranch.