I believe that in 20 years there will be cities (probably not in America) where all cars are autonomous. There will be no red lights, no parking lots, less congestion, fewer accidents.
Also, you forgot to mention the silence, nearly zero cost infrastructure, nearly zero environmental impact, and immense population-wide health benefits—and therefore healthcare cost savings.
In 20 years? Here's a 7 year old video: https://www.youtube.com/watch?v=pqQSwQLDIK8
Also, you forgot to mention the silence, nearly zero cost infrastructure, nearly zero environmental impact, and immense population-wide health benefits—and therefore healthcare cost savings.