Even if you get an award for spousal and child support, there's no guarantee you'll get the money. Fathers are in the arrears for $113.5 Billion. In 2015, only 60% of custodial parents reported child support having been paid, only 44% for the full amount.

As for providing child care at home to supplement your income, that's not possible for everyone. Child care is regulated, and you'd be opening yourself up to potential litigation. Sure there's other things you can do, but youre limited. Severely limited.

Once you start looking into it... being a financially dependent stay at home mom or TradWife is waaaay too much of a gamble for almost everyone.