I do want to live in that world and I live in the suburbs of vanilla tract homes, charter schools, and club soccer.
Vehicles are expensive in either time, money or both... I recently did the brakes of both our vehicles. It was super inexpensive compared to what I was quoted in price, but it cost me some time. I am looking at replacing one of our vehicles soon as the cost of repair may overshadow the vehicles worth. In all cases... it is a hassle and I would rather not deal with it. The alternative, public transportation and/or Uber is either too expensive (Uber) for our use case or inconvenient (public trans)...
If these self-driving vehicles get to parity with owning a vehicle in terms of cost of ownership and convenience. I will be standing in line to get rid of my cars.