User blog comment:B214/High School DxD EX/@comment-30924344-20170105045141/@comment-26709288-20170105053226

Coming from a England perspective, it has nothing to do with gender, it's all about inheritance rights. England has had a fair share of both kings and queens mainly due to who had the right.

For example take Hamlet, some people try to argue that the reason Hamlet mother Gertrude couldn't become queen without marrying Cladius is because of her gender. It has literally 0 to do with gender it was because she had no claim to the throne because she was from another land, meanwhile Cladius was the one who possessed noble Danish blood.

Trying to say it's sexist in both real life and in highschool dxd is illogical. Yes there have been societies where it was male line only but for the most part it was gender neutral and had more to do with who possessed the right blood, was born in the right land, and was born at the right time (first).

Remember Serafall Leviathan had to give up her claim at the Sitri throne to become the Great Satan Leviathan and she was a woman. If Serafall were to have a niece it would pass to her instead of Sona simply because of their blood.