This is what bothers me whenever I hear people rave about the future that driverless cars will finally make possible. They basically list your win-win list: far fewer cars, more pedestrian areas, etc. That might all be true, but we don't to wait for self-driving cars for that! Just build reliable public transportation just like countless cities have already done.
>the future that driverless cars will finally make possible
I tend to think these are further away than most people think. But I also have a lot of trouble seeing how they don't massively increase traffic. Maybe you need less parking and maybe inter-car communications can make traffic move more smoothly. But does anyone seriously believe that people will drive less when they effectively have a personal driver at their beck and call?