One of my BILs has been a SAHD since the day his first son was born. (They have two boys, now.)
His wife makes major cash consolidating/streamlining/fixing businesses and saving them from bankruptcy; she’s VERY good at what she does, I can name many businesses and community hospitals that she has saved.
She has the money-making skills, he has the parenting skills, though, of course, her boys ADORE her. (We all do!)
Their kids are super-smart, play sports and instruments, can drive farm machinery; heck, they excel at anything they do! They are polite, well-mannered and a JOY to be around.
It works.
That is wonderful.