So I'm sitting in a packed bar the night before Thanksgiving (as one does) and I noticed that literally every man and about 80% of the women are wearing jeans. I know leggings have kind of jumped on the scene the last few years but for as long as I can remember jeans have the been the regular casual clothing. When did that happen? Levi's have existed since the 1800s and in pictures as recently as the 40s or 50s people wore more formal clothing it seems, so it doesn't seem like a novelty thing. How did jeans take over a hundred years after thier invention?