I have coffee nearly every morning in a coffee shop. The crowd is large, dense, mostly gay and very noisy. Kids come in with their parents on occasion, often in strollers,...they could scream and never be heard.
This relates to a quieter coffee shop.
I just happen to love the humor in this sign in a Colorado coffee shop.
I love kids and have eight grand children but many kids have parents who are out of control. This sign, I'm told, works.