Not read all posts so apologies if this has already been said. But what I find interesting in the article is the issue of enjoyment. The woman quoted in the last para says that she "adores" being at home with her children, and I can see that if that is the case then one might be prepared to make all kinds of financial sacrifices to do it.
However, what of the woman who does not adore being at home 24/7 with children? I am currently on mat leave after my second child and very much looking forward to going back to work part-time. Of course I love my kids and love spending time with them, but I do it better and we all enjoy it more when it is not my only occupation. I don't think for a second that my office job is more important than looking after children but it does offer me social and intellectual stimulation that I have not found it possible to replicate at home.
As with most families I don't have a choice in the matter financially (I am the main earner). I often find myself using this argument as the first line of defence when asked about my decision to work, because it seems more socially acceptable to cite economic factors than one's enjoyment of working- which is a "selfish" reason, and therefore not very on-message for a mother. It's a sop to the working mother's guilt. But I think, on a broader scale, the categorisation of mothers into those who can/ cannot afford to SAH obscures the very real fact that some of us like WOH very much and would be unhappier people without it. If there is a true divide between mothers, IMO, it's between those who are happy with their situation (be that WOH, SAH, whatever) and those who are unable to get where they want to be for financial or other reasons.