It is interesting how Uber/Lyft et al are interested in the taxi market, or seem interested in it. China also has Uber/Lyft equivalents, but they just sell a s

It is interesting how Uber/Lyft et al are interested in the taxi market, or seem interested in it. China also has Uber/Lyft equivalents, but they just sell a smartphone service to taxi drivers (inexpensive) and unlicenced taxis (also available, but only after unlicensed taxis in the local area have not responded for a considerable amount of time). What China's Uber/Lyft/etc are after is micro-payments. A micro wallet to pay for services such as taxis, and them other things too. Why reclaim receipts when it is through and authorized payment channel? Is this not on the Uber et. al. game plan, or are the markets too different?