Actually gillybob I would rather be rushing around getting school things etc (and I did for many years) than have to spend the eternal hours she must spend primping and visiting hairdressers, manicurists, beauticians, dressmakers, couturiers and stylists in order to keep herself so slim and so perfectly turned out and made up because of the wide spread criticism she would face if she did anything else.
Having had a perfectly ordinary background herself, she must often long to slip on jeans, sweater and flatties on and drive to children to school in the family banger, without make up or a her hair done.
Given the disaster prince Charles made of his marriage, we should be glad that his son and successor managed to snabble someone prepared to to accept the really difficult and frequently dead boring job of being royalty.
....and do not go on about the money. Personally, I wouldn't do the job were I to be as wealthy as Bill Gates, if I did..