Talk:Matasaka Kamishiro/@comment-179.212.5.196-20160121122626/@comment-10733658-20160121150422

Indeed, societies where the surname is derived from the mother and not the father are extremely rare. I'm guessing that Anon is confusing Surnames with Clan names, which are not quite the same.

In some cases, a man might take his wife's surname. But this really only happens in cases where the wife's family/clan is more prominent and the son-in-law is essentially being adopted into the family as the heir.

Japanese society is a patriarchy, with very strict gender roles and often incredibly sexist as well.