Meaning of the word "clergymen's sons always turn out badly" in English

What does "clergymen's sons always turn out badly" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

clergymen's sons always turn out badly

US /ˈklɜːrdʒimənz sʌnz ˈɔːlweɪz tɜːrn aʊt ˈbædli/
UK /ˈklɜːdʒimənz sʌnz ˈɔːlweɪz tɜːn aʊt ˈbædli/
"clergymen's sons always turn out badly" picture

Idiom

a proverb suggesting that children of religious or strict parents often behave poorly or rebel as they grow up

Example:
He was arrested for shoplifting, proving the old saying that clergymen's sons always turn out badly.
People expected him to be a saint, but clergymen's sons always turn out badly.