[miriam]

Why do you want me to share that I have XY chromosomes with e.g. an immigration officer if you don't want to share what's in your pants with the guy that sells you porn/smokes/beer etc?

I'm not female because of the F in my passport or birth certificate. It's the other way around: that F is in my passport because I'm female.

I don't have a problem with people who look at me and put me in the F box. But I most certainly have a problem with people who put me in the M box because of my chromosomes.

You think that replacing F and M with XX, XY, XXY, XO etc. would make clear to people that there is more just one gender or sex. But you make the same mistake as the people who you are focusing on. Your karyotype doesn't define your sex or gender. Someone with XY chromosomes can be a man, a mtf transsexual or a woman with an intersex condition.

There is only one solution to the problem of having M and F boxes in a passport: get rid of them. Or let people change it to what they think that is appropriate. Replacing M and F with other codes doesn't change anything.

Groeten, Miriam