Justin Bieber put up this picture of himself drinking over the weekend.
Yeah, he's only 19, but he was in South Africa, where the drinking age is 18. Not to mention that beer is kinda gross. I'm guessing he's kinda new to drinking, which is probably a good thing. Young drinkers pick their poison based on 2 things: Cheapness and Accessability. That's why you never see high end craft brews used for beer pong.
Those of us that are older and know better don't waste time or money on crappy beer.
Wait a minute. He's got lots of money! What's his excuse?