The article is dated 2023, which kind of adds to it’s modern validity, so thank you for that. It does mention the use of “they are” referring to a singular person, as early as 1375. Looking into that further (off article), its use was generally only accepted when the gender of the person/animal was unknown. Regardless, I don’t have an issue saying “they are” when referring to an individual (a Trans, for example). The hella annoying physical reaction is when I try to use “they is”. So, follow-up question: “they are my friend” when referring to a Trans is fine? I mean, I don’t have to use “they is my friend”?