慣かん習しゅうに従したがう

expression, godan verb (-u)

follow custom; conform to convention; toe the line

Used when someone acts according to established customs, traditions, or social expectations. Often implies a conscious choice to adhere to norms.

• 彼かれは会かい社しゃの慣かん習しゅうに従したがって、毎まい朝あさ上じょう司しに挨あい拶さつしている。

  He follows the company custom and greets his boss every morning.

• この地ち域いきでは、古ふるくからの慣かん習しゅうに従したがって祭まつりを行おこなう。

  In this region, they hold the festival according to old customs.