[tomp]

Personally, I never really got it why companies/forms need things like Race or Sex (or Gender) or Title. What if, in letters they sent you, they addressed you as "Dear Tom" instead of "Dear Mr. Tom"? Problem solved. Even the government only needs these for the purpose of running statistics, and for the needs of the health system (in which case, three sexes are more than sufficient, and often just two options will do - "has an uterus" and "doesn't have an uterus").

[ndr]

In many languages you need a gender to correctly conjugate verbs and adjectives.