When we watch some Japanese anime or youth idol TV series, we will find that the heroine inside is always wearing a strange socks. Many people may be surprised, why do so many people like to wear that socks? Japanese foreign teachers say so.
First, this strange sock originated from a mountain climbing activity in the United States. When we are climbing, we need some leg strength, so we need this socks for some protective measures. And this sock spread to them, so they started to wear this sock.
​​Second, this sock can protect against cold. When it gets cold, this socks can help girls keep warm. Because most of the girls there are wearing skirts, they need something to protect their legs. And that sock has exactly this effect. So they wear those socks.
third, it also has the function of stovepipe. Just like Chinese girls, they like to wear stockings in the cold winter, because wearing stockings can make their legs look thinner and they are also versatile. This socks also has the same function, so in Japan, girls will wear this socks.
fourth, wearing this socks may appear smaller. Just like on the street now, when I see a person wearing such socks with some specific clothes on his upper body, I always feel that this person is behaved and cute. In a country like Japan, most of the women's settings are very well-behaved, which makes men more protective.
The above mentioned is the reason why some girls in Japan wear some strange socks on their legs. But for Chinese students, there may not be that socks, because Chinese school uniforms are different from school uniforms in other countries and have their own unique style.