Many cities and their suburbs were car-centric before Uber and many will be car-centric after Uber. Perhaps somewhat fewer will feel the need to own a car (or a second car) but that doesn't really change the basic nature of transportation options. If anything, there's probably been a (little) bit more attention paid to public transit and things like bike lanes in some cities during the period Uber has existed. Many of us use Uber or Lyft once in a blue moon. My life wouldn't change one iota if Uber vanished tomorrow.