There is no religion in the Mount&Blade world, there is no sacred writing stating that women should be submissive to men, be it a father, husband or brother. And people using Warband as a reference should not forget that the claimant for Swadia stated that it was common for women to be rulers and that the most famous swadian rulers were female, even Harlaus acknowledges that.
While I think it is acceptable and expected that there should be sexist behavior in Bannerlord, nothing points towards this being widespread belief, it seems more like a personal trait, maybe even something to be added with the other traits, like Generous, or Merciful.
Anyhow, I have already seen a mod in the Nexus meant for people that preach sexism in fictional/fantasy games and hide behind the "this is not realistic according to my standards" argument. Use that mod instead of trying to impose it on us all.
While I think it is acceptable and expected that there should be sexist behavior in Bannerlord, nothing points towards this being widespread belief, it seems more like a personal trait, maybe even something to be added with the other traits, like Generous, or Merciful.
Anyhow, I have already seen a mod in the Nexus meant for people that preach sexism in fictional/fantasy games and hide behind the "this is not realistic according to my standards" argument. Use that mod instead of trying to impose it on us all.