Meaningful training is not required to get a driver's license in the U.S. In most states it is completely adequate for a parent to teach you to drive, with no minimum number of hours in a classroom, public or private.

Pilots also receive ongoing currency training. This doesn't exist for automobile drivers. Maybe some states require a written test every few years? But in the three states I've lived in, no written, oral, or in-car test it recurrency training required since the original was issued when I was 15 or whenever.

I had to pass a 20 question multiple choice test, drive at 15mph on a short course and parallel park to get my license at 17 years old. That was my only certification process. Unless laws change, I will never have to go through a training or certification process again in my life.

Comparing pilot certification to that of a driver's is disingenuous.

Thankfully, it's not that easy in all countries. For my test, 3 failures in any category was an instant fail. It's fairly hard to pass the first time.

Although if US drivers are so untrained, perhaps auto-pilot is even more relevant.