I think it would be interesting if we all chipped in on why Male Led relationships work better than the inverse.
Female Attraction to dominance: I don't really have to explain this to you all, because I'd be preaching to the choir in this sub-reddit. But I guess I'll summarize this with a brief, women are attracted to masculine men. So if the guy takes charge, he'll obviously be more attractive to his wife/gf, who will stick around longer.
Male instinct to protect: we cannot deny that men have a greater instinct to protect - and even risk their life for a woman they care about, whereas women do not have this instinct for men - even a man she loves. For example, in the Aurora shooting that happened in Colorado, three guys took a bullet in the chest to protect their girlfriend's from harm.
I haven't heard a single story of a woman who would do the same for her man. Men not only have a greater instinct to protect their woman's life, but also to provide for her and give her a good quality of life. Therefore, most of the decisions he makes will be to the benefit of himself and his SO. (I'm not saying that all guys are like this because there are definitely selfish assholes out there, I'm just saying that the majority of males are like this).
Conversely, when the woman is put in charge, most of the decisions she makes will benefit herself mainly. I'm not saying that she wouldn't consider her SO at all, but probably less so because of a lesser instinct to provide and protect (this is why there are so few male homemakers in the world, few women want to work to provide for a guy to stay at home, even if he's doing something useful at home like taking care of the children or cleaning).
Therefore, it is more likely that a male will make the decisions necessary to benefit and protect the relationship.
I believe that males are the sex who are more willing to commit to a marriage and make it work. 2/3's of all divorces are initiated by women. We also have to look at patriarchal societies where men suffer less from divorce than women do (such as the middle east). In many of these societies, a man would get the kids and only pay alimony for a short time if he divorced his wife, yet few men do so. Also, even back in the days when Western Society was more patriarchal, men still chose to protect and provide for their wives - even if their wife was getting older, less attractive, and more annoying. Since men had the money and power, they could have set up a society where women were kicked to the curb once they were old, and they could freely marry younger women - but men did not do this.
Now that women have more agency to marry and divorce as they choose, they are making the decision to kick their old/boring male partners to the curb in pursuit of better models.
That's all I got...what do you guys think?