Good article. This bit in particular.
'Biological drives need not come into it. The point is, first, that a gender transition – particularly one made later in life – cannot erase the previous person, and everything that went into shaping them. And second, that since there is no objective test of gender identity, there is also no failsafe way to distinguish a transgender woman from a man who wishes to access female spaces.'
I'm surprised to see it in the Guardian. Kath Viner must be on holiday...