Customizable pronouns

[Doozer]

Basically, it's a huge effort, you should be enormously thankful to people who make such a titanic task as rewiring their neuronal network just so you hear the "right" word when they talk to you.

I'm pretty sure it's only hard to call someone "they" if you're stubborn and refuse to change your ways. It's actually pretty easy. If you care enough about showing everyone the minimum amount of respect to call them the right name, pronouns, etc., then it's not hard. Saying it's too difficult shows a lack of respect under most circumstances (unless you have some sort of condition that may make such things more difficult, but most people don't).