And how many taxis actually stay in taxi stands? At airports you have along line of cabs that are constantly moving forward as people pick up cabs. Not practical to park in one spot so you can be plugged in nor is it remotely plausible to have enough outlets for the number of cabs.
Glass half empty kind of guy.
Lots of ways to address the challenges like wireless charging, and cabs are not constantly moving forward in airport lines anyways (go visit them and see how they operate and don't make assumptions). Why do you think it is not remotely plausible to have enough outlets, there is nothing magic about them. There might be a challenge to have them all running concurrently, but this is not the issue we are facing.