Summary: So I have done a good amount of research but I am still confused as to who inherits who's culture, if this is a bug or just how the game is at the moment. I have seen complaints about the children only gaining their mothers culture regardless if its the player character thats a woman or an AI spouse. That is how I then decided to go about playing the game, and I married my brother to an Imperial and myself to an Aserian. My brother has children of both cultures yet I consistently have Battanian children. I tried this on two different play throughs. Each time the percentage of mixed children did change for my siblings but I continuously am producing the same culture no matter how many times I refresh the birth. I actually preferred them gaining their mothers culture as opposed to mine and maybe it was just to much to add in the game but a choice option for which culture the child would be raised under would have been ideal. If my main character is only producing one culture I will start to choose the character based on culture and not stats to make sure the bloodline isn't solely battanian because I feel like that would eventually cause rebellions all over the map