X gender in passport

What age must children be to have an x in their passport?
My son is 10 and i want change his marker from M, Male to X, gender not determined.
are here parents who have experience with this?

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HumanEarth · F

What? Never heard of such a thing? Well I also never had a passport either. When I travel, I travel as a illegal immigrant. I am a animal and I should have the right to travel as such.

To bears and moose need a passport to cross the boarder between Canada and USA, no they don't

Do coyotes and deer need a passport to cross the boarder between Mexico and USA, no they don't

Then why do humans, We are animals to

zonavar68 · 56-60, M

@HumanEarth command and control - nothing more.

HumanEarth · F

You are so right