It's a familiar scenario. Kid wants something from parent they know won't be easy to get. The first argument they make is almost always, "Everybody else is going to that concert!"/ "All my friends have this body part pierced!"/ "Everyone at my school is wearing one!" or something similar. The first rebuttal the parent makes in defense will inevitably be, "So, if the whole world/ your whole school/ all your friends were going to jump off a bridge, would you jump, too?" The response will most likely be one of three, in increasing order of frequency: Contrast The Complainer Is Always Wrong.