I don't really understand this mindset that being at home and raising your kids is only something you do when forced to. For my family, if we had more options -- ie, more money -- then both of us would be stay-at-home parents. It's much more of a joy than going to work.
Your comment presupposes something different that nradov’s comment.
The aforementioned “trad households” do not have a financially independent wife, which is what nradov is referring to when they write
> force the wife into becoming an unpaid caregiver for her in-laws
Typically, the in laws or the husband would control the assets, and hence be able to exert more influence.
> For my family, if we had more options -- ie, more money -- then both of us would be stay-at-home parents.
In the absence of a trust fund, most women (and men) will choose to be able to fend for themselves.