Behavior works both ways, I don't play with the younger kids 90% of the time simply because it becomes an exercise in babysitting I don't get paid for during the times I choose to be relaxing killing dudes and aliens. Same vein, I don't play with adults that act in a similar fashion whom very clearly can't take care of themselves. But the adult population has way more people I have positive experiences with than the younger population, especially kids just hitting puberty like yourself or kids young enough (6-9) that are not even mature enough yet to choose their own brand of cereal. Keep it in mind kid and when you get older you will see the difference.