男だん女じょ七なな歳さいにして席せきを同おなじゅうせず

expression

after age 7, boys and girls should be kept apart

A Confucian-derived proverb stating that from around age seven, unrelated boys and girls should not sit together or interact freely. In modern Japan it is often cited as an old-fashioned moral precept rather than a practical rule.

• 「男だん女じょ七なな歳さいにして席せきを同おなじゅうせず」という言こと葉ばは、今いまでは古ふるい考かんがえ方かただと言いわれる。

  The saying 'after age 7, boys and girls should be kept apart' is now considered an old-fashioned way of thinking.