https://www.bbc.co.uk/news/entertainment-arts-48526656
//The writer said that, as a gay man, he has "rejected restrictive cultural gender stereotypes for "as long as I can remember", but does not believe in gender identity.
"It is impossible for a person to change their biological sex. I don't believe anybody is born in the wrong body," he said.// - bang on.
Being male or female is just fact, spath. It can't be changed. The stereotypes of being masculine or feminine can be. Ironically, the actual sex differences are not changed, even with actual transsexuals. There should be no need, especially in this day and age, for people to have to pretend to be something they aren't, in order to be accepted by society more easily.
//Did we all miss the bit in Biology when Sir mentioned
hermaphrodites etc?//
No, but kids weren't taught it was "normal", or "something to be aspired to", and treated to "are you quite sure you're a boy? Wouldn't you be hapier as a girl?".
But, as an aside, this did remind me of Teiresias who became a real woman for seven years. For this reason his advice was sought (by whom I can't remember) on the question of the relative pleasure men and women get from sex. The seer replied: "If the parts of love pleasure be given as ten thrice three go to women, one only to men."