They're writing what they want to read, though. They want men to behave like they do. They're at an age where they're examining their own sexual and romantic feelings. They may realise, some of them, that men don't deal with those things the same way, but they don't know HOW men deal with them, so they don't think about it, and essentially end up writing about teenage girls who happen to have penises.

So in fact, twinkage can be seen as barely disguised Mary-Sewage.