> But as a deeper question: why is gender even listed on a passport in the first place? Why does it matter for the thing a passport does, letting you pass throu

> But as a deeper question: why is gender even listed on a passport in the first place? Why does it matter for the thing a passport does, letting you pass through a port? There are certain rights that are afforded only to people of certain sex, ranging from relatively insignificant to very serious e.g. special arrangements needed for women in times of war (they need to be interned separately, if not part of thei families). https://en.wikipedia.org/wiki/Protected_persons#Women https://en.wikipedia.org/wiki/Protected_persons#Women . Unless and until we dispense with sex-based rights, there is a need to accurately record person's sex in the identifying document.