Having worked at Uber, I can tell you that most people vastly overestimate how many Uber drivers are working at any one time. A medium sized city like Seattle m

Having worked at Uber, I can tell you that most people vastly overestimate how many Uber drivers are working at any one time. A medium sized city like Seattle might have a few hundred at peak hours. There is a limited scale to any taxi service, at least until it becomes cheap enough that the company can afford to have lots of cars sitting parked and idle for much of the day. Otherwise, the rush hour peaks will be less convenient and affordable than having a private car.