Earlier quoted context omitted.
Question is, which cab app are you going to download, especially when you're traveling? If you use Uber/Lyft (especially the former), you're practically guaranteed that you'll be able to use it at your destination.
I'd google "cab app in country ". Some places it's not Uber. Vietnam it's Grab, Germany I think you have to use a regular cab.
(1) BMW and Daimler will invest $1B in their new joint venture (https://www.your-now.com/) that brings their mobility services under one roof.