I don’t understand why this is so difficult for some people. It’s not like a whole lot has changed right?. Most everyone have already been using they/them for quite some time. The only different being is now, it’s best not to assume gender and default to they/them until asked otherwise.

The way I see it is If these people are able to make the incredibly mind-bogglingly difficult transition from who they once were, to who they are now- including not just facing, but overcoming the emotional, physical, and social challenges- in comparison, it’s should take very little effort for anyone to transition their use of pronouns to properly accommodate them.