We're thrown back, to a considerable extent, on anecdote, unless we were to pull out some opinion polls. And I think things are more nuanced than Badinter seems to be saying ("seems" because I haven't read the book she's promoting).

Anecdote: in hour or two I'll be at the for-the-moment-fortnightly delivery meeting of our local food association. Plenty of people there who'd rather feed their kids fresh produce than stuff from the Lidl down the road. Yet all the women there have jobs. Some are greener-minded than others, so washable nappies are probably on the agenda for those. Possibly among these couples (a high proportion of youngish ones with children), tasks are more equally shared between the partners, making the choice possible. There are more women than men who come to pick their orders up at the delivery point, but the association is overwhelmingly composed of and supported by couples, not just the mums alone.

As to breastfeeding, I shall have to conduct an enquiry. Maternal leave makes it an option (though maternal leave is considered a career drawback by many, particularly employers). As to vaccination, there are surely some anti-vaccinites in the group, and just as surely some pro-, and some in the middle (like this forum?). But I don't get the impression, at all, that I'm surrounded by obscurantists or that the women I meet there are under cultural pressure to be traditional home-makers and child-rearers.

If one were able to put together some data on this, I think it would be necessary at the same time to compare the sales graphs of ready-made processed foodstuffs that get three minutes in the microwave because it saves time. My (anecdotal but certain) impression is that the supermarket space devoted to these products has increased many-fold over the last couple of decades. My feeling is that, if there is a broad social phenomenon to study in all this, it would be that aspect first and foremost. I wonder if Elisabeth Badinter discusses it much in her book.