In order to afford a home and children most families have to be dual income in the US. Her situation doesn't change with a husband, most likely she still won't be able to afford to stay at home with her kids.

I know from experience, I make above the average household income just by myself and just got a mortgage on a home half the average home cost and am still drowning with just one child and stay at home wife. For the average man with a mortgage double mine and half my salary? Literally impossible, the mortgage would be over the monthly take home income alone.

It can't be understated how fucked it is for creating a family as a zoomer in the US. You basically have to be above average to live in poverty just to avoid an infinite debt cycle and have a positive savings rate. Most are dual income with net negative savings, acruing debt each month.