I live in one of those cities and still rely on cars to take me to work because it's in another city and the nearest train station is still too far away. Plus having to take a combination of bus, metro and train ends up taking two and a half hours vs less than an hour on car. Around the city I use public transportation everywhere, but I'd rather have my own private space to transport myself, it's annoying being closely sorrounded by strangers and having to wear a mask inside.

A network of connected public self driving cars would be a good solution, just hop in any any of the empty cars and hop off when you arrive at your destination, leaving it available for someone else.