...As to Kate as a royal housewife, well I think its the case that she wants to do that...
Kate wants to be a “housewife”?
Housewives cook, clean, and do laundry.
They are the primary caretakers of their children.
They plan meals, do the grocery shopping and the cooking.
They clean and do laundry. They run errands. They do the family paperwork (a massive task).
They ensure that maintenance on their home is taken care of.
They plan/worry about the family budget and they pay the bills. They handle the family correspondence and social obligations.
And they do so
much more. They are unsung heroes.
Housewives WORK HARD. Kate is not a housewife. Kate is a LAZY COW
who does nothing but shop and get her hair done. And decorate---and redecorate---her palaces/mansions.
JMHO, of course.