I do think for some women it goes wrong when they make a commitment to children which is not shared by their partner who carries in as normal and whose life doesn't change, refusing to get married and insisting on a 50:50 financial co tribute on from the mother and primary cared of their children.
I think this is the absolute crux of the matter today.
The "glass ceiling" has not been eliminated by any stretch but the barriers to women's advancement in the workplace (requirement that married women stop work/unequal pay etc) have been significantly dismantled in recent decades.
What has barely shifted is the understanding on the part of men that a double income family requires sacrifices on their part in order to support the family.
Most men are more or less comfortable with the idea of their wife or partner working and bringing in money: I would be surprised if a man told me he didn't want his wife to work.
But very few of them have made any real concession towards lifting the weight on women in the domestic sphere and removing this "double shift" issue that women face, where they are often doing full time professional roles and then an entire additional job on top of this at home (childcare and housework and increasingly now home schooling as well).
It simply doesn't occur to most men I know that their failure or inability to support their partners on the home front is limiting their ability to work and earn money. If they are challenged on it they may have lightbulb moments. Some will push back, others are progressive enough to be able to make the right adjustments. But it still isn't a natural thing for them. I am still routinely asking male colleagues about this and am surprised by how unaware they are of this.
The next really significant hurdle for equality between men and women is this. It's not so much about encouraging more girls into STEM subjects (although that's a noble and worthwhile idea). It's about really getting men to engage with the impact that their lack of domestic support has on their partner and by implication on their whole family.
I'm not under any illusions that this is going to happen quickly.