Why can South Korea open that kind of 24-hour study room, but China is not easy to sell?
Each of us has our own psychological feelings. If you sleep less the first night, you will feel uncomfortable the next day. Therefore, it is generally not suitable for China people to stay up late. But if you don't stay up late, it may lead to a decline in your learning ability, but it's not good compared with having a tired state the next day.
Some people really don't stay up late in this state, because if they stay up late on the first day, they may be in a bad state the next day, and there will be a depressed spirit in their study or work life. For us in China, this situation is very abnormal.
But for Koreans, everyone sleeps less on average, so for Koreans. In this state, because of the evolutionary state of each of them, Koreans generally have less sleep, so South Korea can open a 24-hour study room, but China is not popular because our genetic nature is different. Because this situation is different in China and South Korea, we can't stay up late but Koreans can stay up late.