It's the same reason why men occupy almost all positions of note in human history.

We are spread much wider across the genetic bell curve than women, so there are many more exceptional men and also many more complete failures. Women cluster much closer to the average in almost all measurable aspects.

As for why people want women in the kitchen? Running a household is a cooperative task, so you have to spread the work in some fashion. Usually the husband is the breadwinner, which means he's busy elsewhere most of the day. This leaves the wife responsible for general housekeeping, including cooking.