Godack I mean, why do people need to differentiate between genders so much, everyone tastes mostly the same and breathes the same air?
We have Y chromosome, they don't. We play with toy cars/guns, they play with dolls. We earn money and take care of them, and they give birth to our children. We think differently, but love each other. Of course, it is extremely generalized and some people (lgbtqwhatever) are different, but most people (I hope) are still within their gender roles and it leads to different preferences, including reading.