Earlier quoted context omitted.
Uber drivers can see where you are as part of evaluating your ride request. Consequently, though your ride request might be offered to several drivers before being accepted, you are not likely to be assigned a driver who cancels later because of your location. Furthermore, Uber drivers are not allowed to refuse more than a certain small percentage of rides, so drivers who do this more than rarely will be kicked out.…
I have had a case of an Uber driver not really wanting to drive me to Marina del Ray from downtown LA. He gave me a low review (this was back when there was the bug that let you see your rating). The biggest problem I have with Uber is that some of the drivers are so pleasant and professional that I hate not being able to give them an extra tip. Maybe I should figure out how to do that.
Why wouldn't cash work?