That's exactly right. Asking for pronouns only really makes sense in a single-language situation, but most of the world's population uses more than one language

That's exactly right. Asking for pronouns only really makes sense in a single-language situation, but most of the world's population uses more than one language. On the one hand, you can't reasonably force people to select either masculine or feminine, particularly in English. On the other hand, if someone has answered the gender question with "neither / other" or "unknown / I prefer not to say", how would you refer to them in French, say? Would you ask "êtes-vous heureux", or "êtes-vous heureuse"? Unfortunately many languages do not currently have an established or convenient way of referring to non-binary people. (Though perhaps it's true that "most" languages are like Finnish or Hungarian in that gender does not feature in the grammar at all. The Indo-European and Semitic languages with which English speakers are most familiar are somewhat exceptional in that respect.)