This is not going to work. U can not decentralize anything and everything.
It's true that you can't decentralize everything and expect it to work. But for this use case it will clearly work. However it remains to be seen if the app will have meaningful adoption. It's clearly a positive thing, because it increases the degree of freedom. On the other hand, passengers and drivers have to be increasingly aware about the risks acting in a free marketplace. Without background checks, safety is not the same as with the established companies in the sector.
I think it's a form of modern hitchhiking. Bitcoin fits perfectly here as a fast and convenient payment option. In the end however, there will be little room left for self-employed drivers to earn a living as fares will come down further due to the fact that there will be a high number of drivers that are satisfied with low fares, because they just pick up people along their way to/from work for example.
ya.ya.yo!
