It's fascinating. I totally understand why they don't want to identify as sex or the other. Although, I should imagine, not everyone's motives are pure. Or indeed feminist.
I'd also bet my right arm that quite a lot of it is about sex and one's dating pool. Particularly with regards to the men. I'd also be interested to see a graph of the sexual orientation of non-binary people. I can't help thinking that the sexual orientation would be homosexual. But that could just be because I get mixed messages.
What I find utterly confounding is that here I am, a feminist, fully on board with dismantling gender. Wanting to see a world where people are not treated differently because of their sex. And yet, at exactly same time, if I am confronted by someone whose sex I can't determine, it worries me.
I've had to do some self analysis as to why that is. And I've come to the very lowering conclusion that it's because I don't know how to treat them. Argh.
It's never happened in real life. I'm assuming, that in real life, I would get a clue as to their sex pretty swiftly.
I wonder if it reflects the fact that women are socialised to have a rational wariness around men, and when someone's presentation is ambiguous, one's intuition doesn't know what to do.
And yes, I agree that bathrooms, etc, should still remain sex segregated. For all the usual reasons.