So many teenage girls don’t want to identify as girls any more. And who can blame them?

Among internet-literate teenagers, gender has become the primary way to challenge the mores of older generations.

On the bus back from the cinema, a conversation drifted over from the back row. A mother questioning, curious, her speech accented; her teenage daughter, with perfect RP, fielding her inquiries with the exasperated patience that flourishes between the ages of 13 and 21.

“No, Mum, you’re a cis woman because you’re the gender you were born as.”