I think I've seen "their" used instead of "her" or "his" where people declined to specify any gender. This works in English but not in German for instance, wher

I think I've seen "their" used instead of "her" or "his" where people declined to specify any gender. This works in English but not in German for instance, where I think they write "ihren/seinen" which translates to "her/his". I suppose that's as far as Facebook's support for gender choices goes.