Tonight with your 5 to 8 year old
The prompt
“What's a way you could tell someone 'stop' without yelling it?”
What to listen for
If they come up with a calm phrase or a hand signal, they're showing they already understand that being firm doesn't require being loud, which is a really mature skill.
If they insist yelling is the only way that works, that's worth gently exploring together, maybe yelling has felt like the only thing that's gotten attention so far.
If they say "I don't know," practice one together right now, like saying "stop" in a calm, strong voice, so they have it ready.
What this tells you
Whether they can imagine a calm way to hold a limit shows how much they trust that they don't need to escalate to be heard.