Hmm, I wonder how schools are going to cover human reproduction in biology classes these days. Or contraception in PHSE.
It's all a bit of a mystery. Some people have penises and some have vaginas and there's no pattern to it, and sometimes lesbian couples don't have to worry about contraception, and sometimes they do... and it's all a bit puzzling really. And then sometimes babies happen. Though we're not quite sure how. Because sea horses and clown fish. Or something like that. And some babies have large dangly bits and some have very small bits (and noticeable vulvas but let's pretend we don't notice this when coercively assigning whatever it is we assign) and it really is just a difference in size, even though in once case that's where the urine comes out of and in the other case it doesn't and maybe the ones with the longer dangly bits and the ones with the shorter dangly bits might turn out to have different roles in the production of/having of babies when they're old enough but really we're not sure.
But at all costs keep children safe from the dangerously transphobic claim that "women don't have penises." Because that would lead to the end of civilisation as we know it.