Whether or not you believe in the climate crisis or global warming, I strongly recommend all proponents of driverless cars to read The Energy Glut[1] in order to get a good idea of one potential scenario of how America will end up if every man and his dog can use a car to get anywhere. If anything, the studies which are referenced in the book are rather hard to ignore.
As a quick example of the sort of thinking in this book: more cars on the road means that there will be fewer people willing to risk being outdoors anywhere near a road (i.e. most residential areas in this day and age), resulting in higher levels of obesity. As more people become obese, fewer people are willing to walk or cycle ever-decreasing distances, so they get a car -- increasing the number of cars on the road. After that, we enter a rather vicious circle. The average weight of the world population will increase rather quickly, and we will end up like the people in Wall-E. I'd rather ride my bike, but thanks for the offer.