>> How is that possible, if nobody wants to live in a city?

Some do, but many need to for work. As mobility for non-rich average people is reduced, more and more people simply must be in the city for work/services. (That is the only reason I am in a city. I would escape in a heartbeat if my job allowed it.) Where personal transport is cheaper and more available, people flock to suburbs and even "exurbs", which are a big thing now in Texas.

My example: I am often on 1-hour 24/7 recall (military, I don't get to choose my work location). That means I suffer on both ends. I need to be in the city and I must either live/sleep/shop within mile of work or have instant access to a personal vehicle. I guess could setup a cot and sleep beside my desk. That would reduce congestion. But is that a life anyone wants to live?