I think it has to do with grandmas. I mean, my grandmas were housewifes. If asked, they would tell you they have a good life like that. Their generations were taught to never complain, to hide when they were down and to try to not worry everyone else. So unless they decide to open up to you with their frustrations, regrets or the not so nice things, it is unlikely you get to see the bad things.
I mean, it took years for my grandma to tell me that he could have go to university. I could see in her eyes that he would have liked it. But since her father forbade her, she didn't went. And she looked sad while telling it, but won't dare to blame her father or even say that her father did wrong.
That is the way it works. Part of their job was to hide the ugly and they excelled at that. You would see the cakes they baked, the perfet hair and clothes, the polite smiles and the elegance they have. You'll have a hard time seeing how the slights and regrets for things that they couldn't do affect them. And since they love their families, they don't want them to know that many of the nice things they get from them, they get them at the cost of those grandmas. They have sacrificed their lives and many times are not ready to trow all that away to open eyes.
Many women who idealize that might change their minds after a few years living that "dream". Or maybe they would go into the "sunk cost" fallacy and keep going.
Also, socialmedia is like that. They would only show the instagram pictures, not the toilet cleaning or the kids with feever or that time that hubby came back angry. Those things are "private".
They are free to follow that path as long as they don't impose that on others.