Because we live in a society that cares a lot about commercial branding because we lack the community connections that gave an identity to our ancestors. In a more mobile world with relatively transient social connections, we feel the need to define ourselves, and buying specific brands are a way to do that. (Sorry, couldn't resist.)
According to C.S. Lewis, because we all prefer playing with mud pies in the slums to vacation by the sea shore. According to Eustace's mother, because our houses have too much furniture.
DPBM, why does TDL seem to give birth to more abbreviations than any forum has a right to?
Usually, the food that they can't seem to keep on their forks. But Oly's beard hides more. Not sure if he qualifies as hipster, though. Pink beards aren't the most authentic thing on earth.