No, these are not your bad riding youth. They are bike thieves who know that the police won't chase them because its not allowed. The police are only allowed to follow at a distance.These are part of the collection of A-holes that give 2-wheel riders bad reputations and garner dangerous attitudes towards us.
As sad as it sounds I think only a bad crash, or worse are the only things that may changes their ways.
Hope someone is able to ID these riders.