As I see it, the problem in the US is due to lack of driver education and driver accountability.

In Germany it takes about $1500 and more hours of instruction than it does for a pilots license in the US. The behind the wheel test involves about 50km and if the student makes the slightest error they must go back for 10 or so more hours of instruction before they can retake the test. Because these people have put so much into getting a drivers license, they are not about to do something to cause them to lose it which is EXACTLY what will happen if they start driving the way you describe.

In the US, a person must be 16 and their heart must be beating. That's about all it takes to get a drivers license. In Texas now, if they take drivers education, they don't even have to take a behind the wheel test. Once on the road they just about have to kill someone before the license will be taken away.

Have a great day,