I've seen that pattern too. A kid at a birthday party I had had, spent the entire time playing grand theft auto vice city; sleep be damned. He had never watched a violent movie, so the quests were uninteresting. That ~22hr game session was dedicated to roaming free, and what that afforded (simulated violence, prostitution, etc). I didn't see that happen with drugs at least - adderall, xanax, klonopin abound, but the sheltered kids I knew never dove into them the same way.