When I lived in Japan, the parents really make sure their kids don't make loud noises in public space. I really enjoy that.

People who just say kids will be kids are just lazy and making excuses. There are ways to do it correctly while not just shutting your kid up. There are time and place where they should learn to respect silence and not just be excited as they please.

However I do think this concept of teaching your kids to be quiet at times will be thought of as making them submissive or something. It's more about understanding how to coexist with others.