It’s actually quite important. Your sex are what your chromosomes are, your gender is what you identify as.
Your sex doesn’t change, your gender does.
That’s literally the definition of it.
This is important especially for medical purposes, medication, surgery, emergency care…etc all has variations based on your sex, because different sexes are predisposed to different classes of problems and interactions. This also applies to REPORTING, reporting that a medication affects someone born female different than someone born male is an extremely important distinction.
Incorrect reporting literally costs lives.
It should to be standardized, just like everything else that has significant consequences on well being.
Politics are ruining what should be completed apolitical.