That might work for the ones who are explicit about it, but there are also the subtler ones. Like the drivers who won't ask but will still give you a low ratin

That might work for the ones who are explicit about it, but there are also the subtler ones. Like the drivers who won't ask but will still give you a low rating if you don't offer a tip. And then you have the ones in the middle, who have tip jars sitting in the middle of their car. Source: http://www.huffingtonpost.com/entry/uber-driver-complaints-etiquette_55b7eaf7e4b0074ba5a69e69 http://www.huffingtonpost.com/entry/uber-driver-complaints-e... Also, while you or I might complain, a lot of people are either too scared to speak up or just figure that a big company like Uber won't care, so this kind of stuff just goes unreported.