Driving requires common sense, an understanding of human nature (within your culture) and a basic knowledge of physics.
Unfortunately, "In 2010, there were an estimated 5,419,000 crashes (30,296 fatal crashes), killing 32,999 and injuring 2,239,000."
This is a strong indication that the above listed requisites are lacking in a large portion of the population.
RE: In 2010, there were an estimated 5,419,000 crashes (30,296 fatal crashes), killing 32,999 and injuring 2,239,000
That’s like 2 jumbo jets crashing every week...