Much slippage to get to the point I wish to comment on.
I am in agreement in principle with the hilited statement. I have never had an opportunity to put in into practice. I have never had a person tell me the gender they identify with. I know that there are posters here who have much different life experiences than me. I would like to know if there are people who encounter this type of open self-identification enough for this to be a principle that needs to be stated.
It has just come up in our family as a good friend has decided that they would rather go by "they/them" than the pronouns we previously used. I have a hard time with it because i don't talk about them very often, so I don't practice it. But, my kids give me gentle reminders and I am getting the hang of it.
Bottom line is that it is a sign of respect for their wishes. They are going through some tough times and we have always been supportive of them so it seems an odd time to say "No thanks, I will call you whatever I want and you'll just have to get over it. This is the real world, deal!"
Also, I read this as being pronouns that one would use when discussing the gender-identifying person with a third party, and not when one is in direct conversation with that person. The only pronoun that would arise in direct conversation is the gender-neutral word you.
This is correct, which makes it a bit harder actually. When the person is in front of you it is easier to remember what that person wants. When you are recalling a person it is easier to fall back into old habits. Especially if they have changed their look to be less binary conforming.