The idea of kafu also penetrated through general families together with the notion of family system, and expulsion of a son's wife who expressed disobedience to her husband or in-laws was justified as a reason for divorce.
また、家制度とともに「家風」の考え方は一般家庭にも浸透し、夫やその両親に反抗する「家風に合わない」嫁の放逐は離婚の正当な理由とされた。