I’ve been married too long to be an expert on this topic, but it seems like disparity in higher education accomplishments. Women surpassed men, and black American women in the 15 years surpassed all other gender-ethnicity combination in America. This means more intelligence and independence among women and perhaps less overall tolerance for men-child. Women can now historically not have to tolerate and put up with these types of undeveloped men.
I personally believe women are not sexy machines or Instagram pinups. I’ve just seen some Instagram photos of ladies who pose and make themselves up for beauty clicks, which probably is one percent or less of women but still enough to keep men scrolling and fortifying the fantasy of the sexy bombshell. But in general, taking care of children and keeping a professional job is draining and doesn’t leave time for a teenage libido. The complexity of “adult” married life means severe adjustments in expectations to be successful, especially if kids come into play. I remember when I realized I wanted children, it was on my 35th birthday. A lightbulb suddenly went off in my head. I told my wife I wanted children and I imagine her response was mentally like “wow you just realized that? Glad we got married years ago.”