I’d be worried about a kid being quiet on the playground. Those are the ones up to something mischievous lol

Yes. We have the concept of "inside voices" or "outside voices".

I believe that letting kids get their loudness out outside is essential for them to learn to be quiet and respectful inside.

My niece has this obnoxious fucking horn she "plays" all the time. We've told her that she's allowed to play it all she wants, she just has to do it outside (so our ears don't bleed).