How could it be immoral for women to sit on benches and chairs in Song Dynasty?

When did China people start to sit on stools? Today, it is common and natural for China people to sit on stools and chairs; However, if women in the Song Dynasty sit on stools and chairs, it is simply amazing and even considered immoral. Lu You, a great poet in the Southern Song Dynasty, wrote in Notes on the Old Xuegong: "Once upon a time, women from scholar-officials' families sat in chairs and played badminton, and everyone laughed at them for being unruly. "Don't say before the Song Dynasty, even for men, stools and chairs were rare. No wonder many ancient movies, TV series, operas and even novels often get "rotten" and "confused". Ancient people, whether China people or foreigners, all evolved from animals, so in the long years, they just got used to sitting on the floor at first. Until the establishment of the Han Dynasty, China people gradually sat on the bed. But in the beginning, although people sat on the bed, they still kept sitting on the floor. " Anyone sitting will bend his feet. "Japanese and Koreans still maintain this habit, and the Japanese even named it' tatami'. Today, people in northern rural areas are sitting cross-legged on the kang, and the situation is probably similar. It was not until the last years of the Southern Dynasties that the ancestors gradually had the "lame bed hanging feet", that is, hanging feet sitting on the edge of the bed. At that time, distinguished people sat alone in a bed, while guests and ministers sat together in a bed. The ancient custom of sitting on the bed was introduced by the conference semifinals in the western regions. Hu Chuang was widely used in Wei, Jin, Sui and Tang Dynasties (emperors and even ministers in Sui and Tang Dynasties had many elements of Ren Hu in their blood). Rich and powerful families not only have to live in one room, but also have to be carried around by attendants to prepare for a temporary rest. Of course, this kind of Hu bed is not as huge as today's bed. It's light and the right size. In fact, it has the shape and function of today's stool, but because there was no title of "stool" at that time, people used to call it "Hu Chuang". This is the prototype of China stool. Especially after the Tang and Song Dynasties, the use of stools gradually increased (but the phenomenon of women sitting on stools is still rare), and the names of stools began to be widely used, and they were separated from the traditional categories of beds in China. According to scholar Luo Changqin's textual research and articles, there are many forms of stools in ancient China, mainly rectangular, square and round; In Qing Dynasty, plum blossom, peach blossom, hexagon, octagon and begonia were added. There is also a round stool, which is flat up and down, small at both ends and large in the middle. When it is used, it is called "embroidered pier" according to different seasons, supplemented by different cushions and embroidered seat covers. In the stone carving of Lotus Cave in Longmen, Luoyang, Henan Province and the Western Wei fresco "Five Hundred Thieves Becoming Buddhas" in Dunhuang, Gansu Province, the round pier where Sakyamuni Buddha sits is the true image of this kind of seat. In fact, the word "stool" in ancient China originally did not refer to the seat, but specifically to the pedal. It is often used in combination with beds and chairs. Besides stepping on the bed or sitting, it also has the function of pedaling. Generally, the sitting surface of a chair is higher than the height of a person's calf, and people will be suspended when sitting in a chair. But if you put a footstool and put your feet on it, you will sit much more comfortably. As for calling all chairs without backrests stools, that's later. In this way, after the stool was widely used by people, it changed the habit of sitting on the floor for many years. Later, people generally sat on stools in life and work, which was more comfortable and convenient to move.