i think that it si only a stereotype and i do not think that it is actually right. of course it is great when the husband brings more money in the family but it should not be so. there are a lot of different things, but still it can be so. because the woman is the housekeeper or if she looks after the children and cleans the house then she does not have enough time for the career, and of course men are stronger physically and that is why they have much strength to work harder and of course longer.