There's a reason why trainspotters are not girls, there's a reason why there's the myth of the slightly autistic male genius, there's a reason why Gertrude Stein believed that her self-presentation was male. One could argue that was Susan Sontag also. The things that we associate with femaleness are not the single-minded, exclusive pursuit of a vocation, whether it be art or anything else. It is not a model that is widespread in our culture, it's not something we think of for women.