Meaning of the word "children should be seen and not heard" in English

What does "children should be seen and not heard" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

children should be seen and not heard

US /ˈtʃɪl.drən ʃʊd biː siːn ænd nɑːt hɝːd/
UK /ˈtʃɪl.drən ʃʊd biː siːn ənd nɒt hɜːd/
"children should be seen and not heard" picture

Idiom

an old-fashioned proverb suggesting that children should behave well and remain quiet, especially in the presence of adults

Example:
In my grandfather's house, the rule was that children should be seen and not heard.
Modern parenting has moved away from the idea that children should be seen and not heard.