Why can't we use a stone mill to build houses in rural areas?

Why not build a house in the countryside with a millstone? First of all, we should also pay attention to building houses in rural areas now. Because the materials are different, the whole building is very heavy, so the walls are made of cement and bricks, the roof is poured with concrete, and the net is tied with steel bars. So now the foundation of building a house is made of cement frame. In the early days when rural people didn't have much money, it was easy to build a house. The simple point is to make a slot and ask the villagers for help to tamp it. It is good to use gravel foundation when conditions permit, and then cover reeds with adobe walls and wooden purlins on the roof, even if it is covered with yellow mud. In addition, why not use the millstone foundation is of great concern in rural areas. Building a house is a big event, and there are many taboos.

Stone is taboo in China, especially the first stone mill in the mill can't be put into the alley mouth, it must be put in the college, and the mill can't face the door. Now I don't know why, but everyone says we should pay attention to how to recognize it, not to mention building a house in the country, which has a huge foundation. Speaking of millstones, the partners who live in rural areas are no strangers, right?

In the past, I often saw some stone tools such as grindstones in rural areas. The pig trough is made of grindstones, which is convenient to use and wear-resistant. The millstone is so hard and wear-resistant, why can't the wall below the rural house be used as a millstone? In the past, our tile houses, including those built in recent years, were all surrounded by big stones, with grooves at the bottom and no grindstones.

The following are some details: although there are many vegetables and mountains, stones and stones in the village, it is not common to grind stones. I can't name the stones on the mountain. They are not so wear-resistant, crisp, a little pink and look white. The stone mill is different from the small plagioclase it makes; The grindstone is rare and hard, and it is not suitable for large-scale mining to build houses and lay foundations. /n/n means that grinding played an irreplaceable role in people's lives in the past.