버게가 옳았다.

그렇다.

빅데이터;

의외로 아들이 많네;;

https://namu.wiki/w/근친상간#s-2.1

1950년대까지 일본 시골 지방에서는 어머니가 죽거나 불구가 되면 봉건적인 가족 전통에 따라 딸이 아버지와 결혼한 사례가 있다.(아래 사례있음) 심지어 그 후 아버지가 가장 역할을 못하게 되면 아들이 그 역할과 아내를 물려 받았다. 특이하게도 전통적인 공동체 내에서는 부도덕한 행위로 간주되나 전통 가족 내에서 이러한 것은 정상적이고 권장될 행위로 받아들여졌다. 아래는 출처 원문.

One indication of what is likely to be found is a 1959 study by Kubo showing that there were still rural areas in Japan where fathers married their daughters when the mother had died or was incapacitated, "in accordance with feudal family traditions.(154) Kubo concluded that incest was considered "praiseworthy conduct" in many traditional rural families. In the 36 incest cases he studied in Hiroshima, he found that there was often community moral disapproval of the families who lived in open incestuous marriages, but that the participants themselves did not think of it as immoral. In fact, when the father was unavailable to head the family, his son often took over his role and had sex with his sister in order "to end confusion in the order of the home." Other members of the family accepted this incest as normal.

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