Oh, I have a nice contribution to your comment! I use some taxi apps (very infrequently), and sometimes I need to call it for someone else, not in my current location. Sometimes there is a promotion catch with, say, 20% discount. Which is applicable only for a personal ride (e.g. from your location), but if you ask a taxi to bring someone to you (e.g. from other location to your location), well, then sorry, not applicable. I used to trick the app but faking my location on my Android with gps-fake app (don’t remember the name, mine was from f-droid). I bet taxi services are not happy about that kind of a customer. Giving it some thought: still a returning customer. Sometimes it’s not just the money thing for me, but the challenge of whether the algorithm could be tricked.