Language is such an interesting thing. The French have always tried to tightly control theirs and have a ministry dedicated to it. I personally disagree with that. Language evolves and that's fine. I think the move from default 'chairman' to 'chairperson' for example was positive, but it was individuals and organisations who made that change happen and you won't get arrested if you say 'chairman'. (Not that you would get arrested in France, but you know what I mean. No one owns English).
Interestingly, the '-ess' suffix (actress, manageress, etc.) is no longer favoured in English, whereas in German, like in French, there is a move to include the female ending to all nouns like this, having a sort of hybrid using either a midpoint or an asterix. So in the English speaking world people prefer to use the word 'actor' which originally was only for men, for both men and women whereas in German people are pushing for 'Schauspieler*innen'.
I find the top-down approach adopted by large businesses and organisations on some of the gender neutral language ill advised. Trying to control how people speak seems Orwellian to me. The reason people are reluctant to use 'they' as a singular pronoun is because it makes things unclear in many instances. NOT in the often cited instance of when you don't know a person (and how we have used 'they' as a singular pronoun for ages). But here's an example of using 'they' as a singular pronoun that I found really confusing.
Does the first 'they' refer to Alex and Krista? If they are married, how can they have sisters? Oh, it refers to Courntey. Fine. Hang on, Ahsley and Brittany were 9 and 11 when they were born? What? How can you be 9 at your own birth?
I don't have an issue with a third singular pronoun in principle, though I find the focus on it strange, given that the person being referred to won't be there and therefore not know how they are being referred to. I get that 'it' is dehumanising ,but 'they' is often really confusing. Neopronouns have not worked, because deliberately introducing grammatical terms like this has never happened in English as far as I'm aware.
Anyway, these are my thoughts on language. Thanks for listening.