What if teenagers ruled the world?

If teenagers ruled the world, the Earth would become a dangerous planet. Not only would nothing be accomplished, but business would not be able to run, money flow would be corrupt, pollution would increase, etc. Adults are needed in today's world to nurture their younger citizens because without adults, teenagers would be confused on many aspects of life. Living in a world ran by teenagers would only be enjoyable for a certain extent of time before chaos and havoc spread.