Mei tsuki7
Some who are genderfluid probably use the bathroom of the gender they are expressing that day. You'd have to ask them.
See, this is what confuses the living s**t out of me about this issue. Genderfluid? If I'm getting my context right, they're people who don't always express the same gender things every second of every day. One minute they could be male, the next they could be female and after that, they might feel genderless or like both at the same time or something. I'm not gonna pretend for a second that I understand all the nonbinary stuff, but I do at least know the basics of being respectful, and asking someone what their gender is, especially someone I don't even know seems like asking for trouble. I dunno. It just seems like a very personal thing to ask strangers.
I have personally never met a nonbinary person. In my experience, they only seem to exist on the internet. Go ahead and get self-righteous and tell me how bigoted I am for admitting that if you like. Nobody likes the truth. I dunno what sort of community you live in, and I assume from the way you talk that it's teeming with nonbinary folks, but I don't live in a community like that. The way I see it, you (not you specifically) aren't gonna change the minds of folks like myself by trying to get teachers to use a few goofy terms. Don't mistake this as my refusal to learn. I want to be better, but I believe experience and exposure is the best way to teach, which is why I applaud this mother for daring to send her daughter to school the way she did.