It's all about showing off. It's not that the children are immature (which they clearly are in this case), they just want to fit in.
Not everybody in this new "mdurn generation" is jacked up. Before you start screaming, BLAME THE ENTERTAINMENT INDUSTRY, BRO!, realize that times change, and people change.
So let us quit fussing over this people, get over them. In ten years, you will know things are just fine in your own life when they end up working at Burger King.
Ninja edit: I just noticed how similar my post was to Magick Mage's. I didn't even hardly read them beforehand. :o