This is very much a draft.
Let's assume that boys AND girls are influenced by girly culture, and girls AND boys are shaped by masculine culture. I want to look at this from the boys' point of view. Girly culture has a purpose for boys, and it the same as insect repellent. A firm knowledge of girly culture is required for boys to avoid being contaminated by femininity or anything associated with women and girls. If all we need to protect the fragile masculinity of boys is a visual culture that signifies GIRL so clearly that no child under the age of six months will ever mistake one for the other. What then, is the purpose of boy culture?