I don’t even use gmail professionally and I was still using that.
Some (terribly implemented) services don’t allow changing e-mail on their accounts, and I have stuff I subscribed to aeons ago with a mail I am not using anymore.
Not that I can’t connect directly to that old crappy mail provider, but it’s very inconvenient.





Arthur C. Clarke was not wrong but he didn’t go far enough. Even laughably inadequate technology is apparently indistinguishable from magic.