Perhaps women are obsessed wth shoes because it's been classified as a "woman thing." As we grow up in the world, we hone our personalities a certain way based on both nature and nurture. I was exposed to Muppets without that many negative consequences and I became the big Muppet fan I am now. Perhaps women are exposed to the "joys" of shoes, shoe shopping and whatnot with mostly good feelings in the end and that made them frequent shoe shoppers. That's just the way i think of it, but I could be wrong.