Why was it considered bad luck to have a woman on board back in the day of sail ships?

@canusernamebemyusername a mutiny?

@SW-User For whatever reason. Maybe the captain claims her or one of the deck hands and they fight and people take sides. Etc... Much better to have enough women to go around rather than just one that gets fought over.

@canusernamebemyusername that makes plenty sense :)