Why go to the kitchen and toilet should be called under the kitchen and on the toilet instead of

Because when you go to the toilet, you are either squatting or sitting on the toilet, and you are on top of it relative to the carrier that carries you, so we often say that you go to the toilet, but when you go to the kitchen, all the things you have to use are under your hands, including chopping vegetables, so it will be said to be in the kitchen.

The upper hall is more expensive.

Under the kitchen for the lowly ancient times. >>>More

The ancient saying that the toilet and the kitchen do have a certain basis, mainly because in the past, the toilet was built at a high place, and the sleeping and kitchen were mainly built at a low place, which can better help to discharge the odor of the toilet and make the air fresher.

The main source of this is that human beings lived in caves at the earliest, if the toilet is placed at the bottom of the cave, the smell of the toilet always goes up, then the whole living environment will be affected, and it is not hygienic, so the toilet is placed on the top of the cave; The kitchen and dining room are placed underneath, which is convenient and solves the problem of heating in the cave. That's why people always have a habit of saying "go to the toilet, go to the kitchen"! >>>More

I don't know how to explain the answer I'm looking for somewhere else, so I'll make do with it. >>>More