[falcolas]

The flip side is twofold - to take advantage of said autopilot, you need a pilot’s license, which is significantly harder and more expensive to get than a car license.

Aircraft are also expensive (and come with expensive operating costs like airframe examinations), since their failure mode is a more-or-less controlled “falling out of the sky” - so you want the most resilient parts you can have to skew more towards the “more controlled” end of the spectrum.

There’s also a whole network of human traffic controllers who work 24x7 to accommodate our existing air traffic; more would be required.