Uber’s in-app chat is for people who really don’t want to talk
 

Uber hit a whopping 5 billion rides in May, up from 2 billion rides a year ago. That equals an unquantifiable amount of passenger-driver interactions. Therefore, it's odd that reaching out to your Uber chauffeur has always been such a cumbersome proc...

https://www.engadget.com/2017/08/10/uber-in-app-chat/