@ancarra I understand your issue and agree that it would be a good thing if the Sims could also use the intersex variants in pronouns. But I know this will still be an uphill battle like @PugLove888 explained.
So, losing restrictions on clothing could be the first step. Losing the restrictions for the mannequins in the store must be feasible. The fact is that then there will only be one type of mannequin. I know it will not be easy for the developers to make meshes that will fit all sizes (male and female). I tried altering clothes myself at the time I played The Sims 3. Making CC was a lot easier then. But in that time, it took me hours to get a snug fit for some of my Sims and when the sims got fitter and more muscular it really looked silly. I am not a developer or cc-maker and I really appreciate the garments some of the creatives can make. I hope they will be able to pull this off.
@daikoyu in my country we have the possibility to choose m/f/x as gender on your identity card or passport. In this case x stands for neutral or do not want to disclose. The language in my country belongs to the same larger group as yours Germanic/Saxon. Over the years we lost most of the cases as well as the gender designations. A lot of people do not even know the gender of the words anymore. Unlike the Roman language. People might still use it in official language, but in spoken language they can't be bothered.
Some of us will use plural forms as pronouns. So, I really like they and them in English. And i can find some words in my mother language that will resemble that. Hopefully in the future The Sims will have a way to fit in gender neutral pronouns in all the language packages.
Have fun playing. 😉