Looking for information about the Mosuo, I found this scientific thesis on the subject that has a lot of interesting information about the research into matrilineal societies.
Unfortunately, I wasn't able to find anything with statistics for gender ratio among the Mosuo, but there was an indication that Mosuo society appeared to reverse the trend for male preference seen in the Han majority. The Mosuo value and encourage female offspring, which may skew their gender ratio towards more females than males (which is contrary to the world average).
For further reading on the points that have been brought up on this thread, I suggest the wikipedia pages on Gender Ratio, Fisher's Principle, Kin Selection/Hamilton's rule and Cooperative Breeding.
I'd also caution that the writers for Square Enix probably aren't scientists and likely didn't put nearly this much thought into the mating system. Whatever lore we see in game about this will likely either skim the surface or contradict real world scientific theory to some degree.
Unfortunately, I wasn't able to find anything with statistics for gender ratio among the Mosuo, but there was an indication that Mosuo society appeared to reverse the trend for male preference seen in the Han majority. The Mosuo value and encourage female offspring, which may skew their gender ratio towards more females than males (which is contrary to the world average).
For further reading on the points that have been brought up on this thread, I suggest the wikipedia pages on Gender Ratio, Fisher's Principle, Kin Selection/Hamilton's rule and Cooperative Breeding.
I'd also caution that the writers for Square Enix probably aren't scientists and likely didn't put nearly this much thought into the mating system. Whatever lore we see in game about this will likely either skim the surface or contradict real world scientific theory to some degree.
I'm a tinker! Tinkerer? Hrm.... I'm an artificer! - Myxie Tryxle | Impressions and Memories
