A majority of women's magazines feature women who do amazing things, but then the article focuses on how she ruined it with her shoes.

As a former ballerina, I can't put down Maggie Shipstead's new book, Astonish Me.

But nearly every woman I know has a roughly similar story - in fact, dozens of them: stories about being obsessed with a celebrity, work colleague or someone they vaguely knew for years; living in a parallel world in their head; conjuring up endless plots and scenarios for this thing that never actually happened.

But deciding not to have children is a very, very hard decision for a woman to make: the atmosphere is worryingly inconducive to saying, "I choose not to," or "it all sounds a bit vile, tbh." We call these women "selfish" The inference of the word "childless" is negative: one of lack, and loss. We think of nonmothers as rangy lone wolves - rattling around, as dangerous as teenage boys or men. We make women feel that their narrative has ground to a halt in their thirities if they don't "finish things" properly and have children.

I was brought up in the '80s. I was born in 1975. So by the time I got to 10 and I kind of knew that I probably was going to have to be a grown-up lady at some point, the feminine role models that I had were kind of the cast of "Dynasty" and "Dallas." And I just found that terrifying.

I have a rule for working out if the root problem of something is, in fact, sexism. And it is this: asking 'Are the boys doing it? Are the boys having to worry about this stuff? Are the boys the centre of a gigantic global debate on this subject?

There's something so free about being a fan and being enthusiastic about stuff - you attract all the other people who are also loving and enthusiastic when you're sending out signals of love. When you start to communicate cynicism and hatred, it leads you down a completely different path.