Earlier quoted context omitted.
uh but using "they" as a neutral way to talk about anyone is just fine. people have been doing that for literally centuries, its called "singular they" this is all about people wanting to be outraged for no reason
"Singular they" is indeed well used, but it's not normally used when the gender of the person in question is explicitly known. If you use "they" for someone who has specifically said to you "please use the pronouns 'she/her' when referring to me", you are being rude, not neutral.
"They're in the garage, I think"
is common to hear, just as
"He's in the garage, I think"
Many will mix between the "he/she" and "they" in the same conversation. Quite often referring to their closest friends and family rather than pointed attempt to misuse a pronoun.