Let me just clarify. I'm not talking normal, excited kids'-play sort of noise, and as far as I can tell, none of the kids concerned have any 'issues' that would lead to this. I also don't mean the kind of screaming that could flag a possible concern. I'm talking about the 'isn't it fun to see how much horrible noise I can make, and how loud, and for how long' competitive type stuff when they play outside. And it's not just occasional either. And it's not just one or two kids.
AIBU to be sick and tired of this and to wonder why some parents don't ever appear to do anything to discourage their children from it?