A pair of chopsticks, deciphering the differences among China, Japan and South Korea

Food is the most important thing for the people, and the cutlery used by different countries in the world is different. Western countries (Britain, America, etc.) are used to using knives and forks, India and Arab countries are used to holding rice by hand, while Asian countries (China, Japan, South Korea, Vietnam) are basically eating with chopsticks.
China has a history of using chopsticks for more than 3000 years. It is also the country where chopsticks were invented. The habits of using chopsticks in Japan and South Korea are all passed down from China.
There is a folklore that it's said that Dayu passed through his house three times and didn't enter when he was controlling the water. He ate in the wild. Because the meat cooked in the pot is too hot to eat, he broke the branches and used them to pick up food. This is the earliest prototype of chopsticks.
Although it's just a legend, the ancients started to make a fire to eat cooked food. It's too hot to eat, so chopsticks are used. It's not unreasonable.
In the Tang Dynasty, Japan and South Korea were all affiliated vassals of China. They studied Chinese culture to a great extent. That is to say, chopsticks culture began to spread widely in Asia.
What's the difference between Chinese chopsticks, Japanese chopsticks and Korean chopsticks? Chinese chopsticks are long and mostly made of wood. This is mainly because Chinese food is greasy and wooden chopsticks can prevent slipping.
In addition, chopsticks are relatively thick, which not only can hold pasta, but also rice
Japanese chopsticks are thinner and shorter, and the bottom of chopsticks is very sharp. This is because Japan likes to eat seafood, such as sashimi, which is more convenient to use.
The shape of Korean chopsticks is relatively flat. The common Korean chopsticks are usually made of stainless steel. The reason is related to eating habits.
Because Korean people like to eat barbecue, using stainless steel chopsticks will not be burnt by the oven
In addition, stainless steel chopsticks can be very slippery, so Korean people often eat with spoons.
Although there are many ways of evolution of chopsticks due to different eating habits, chopsticks are an important part of Chinese culture, which can only make people laugh at the flow of South Korea's application for the world heritage.