Why do some Japanese girls wear skirts instead of down in winter?

When you travel to Japan in winter, you will find that many Japanese girls don't wear down on their upper bodies and skirts on their lower bodies. Is it not cold in Japan? Why is this?

The first is geographical location and climate. Japan is Northeast Asia, because the monsoon is obvious and the ocean is strong, so the winter in Japan is not as cold as ours. Moreover, Japan's maritime climate makes Japan warm in winter and cool in summer. So many Japanese girls wear professional clothes in winter. If they feel cold, they can put on a small coat outside. I'm traveling in Japan, and the tour guide is like this. It's beautiful!

The second is historical tradition. Many people have been active in winter since childhood, in other words, they have been frozen out since childhood. There are reports in China that this will lead to Japanese cold legs. When I was traveling, I specially consulted the Japanese tour guide. The tour guide said that there was no such report in Japanese social news! Well, it seems that as long as they get used to it, there is nothing wrong with it, just like drinking water with ice when they were young.

The third is the realistic factor. Now the emergence of anti-freezing artifacts is popular all over the world, and another is that heating is basically popular in Japan, and even public facilities are equipped. Therefore, many girls basically have no time to stay outdoors for a long time. Even if you stay for a long time, you usually just need to add a big coat. When will such heating be popularized? This is a problem!

What Japanese girls wear in winter is really eye-catching. This is not sacrificing yourself to please others. It is caused by various reasons, and I love beauty, so I wear it. What other reasons do you think cause girls to dress like this?