Most people eat at home, and if they don't have one, they go to a convenience store. Japan's social traditions are very different from China's. After getting married, most Japanese women choose to become full-time wives and take care of their families. The three meals a day are a great opportunity for full-time wives to show off their skills.
Full-time wives usually get up early in the morning and prepare rice, miso soup and other side dishes for their husbands and children, most of which consist of grilled okonomiyaki and natto. This is the simplest Washi breakfast. With the advent of the new era, more and more western cultures are coming in, and a glass of milk with a piece of toast with a fried egg and a little ham is also a good choice. After making breakfast, full-time wives would also make bento lunches for their husbands and children to take to the office as well as to school for lunch. As for dinner, naturally, they come home and eat it together.
Then there are those young people, or middle-aged people who live alone. Some of them can't eat at home for various reasons, so the convenience stores on the streets of Japan are convenient for them. Japanese convenience stores are different from Chinese stores and supermarkets in that they operate 24 hours a day. They can buy all kinds of food to fill up their stomachs, such as rice balls, sandwiches and so on, and even a box of instant noodles, and the merchants provide hot water for free.
Japan doesn't have the breakfast stalls that China has, perhaps because of different customs, or perhaps because of something else. In any case, Chinese people eat a hot soup and hot rice, while the Japanese are used to eating cold food, for them, even if it is a cold rice ball for breakfast actually does not matter.