I go out with a strong purpose. Why do some people go shopping for a long time without buying anything? When you go out, you basically want to buy something and go straight home after buying it?

Everyone is different. Doing so is good for you, and it can save a lot of time. I also want to buy what I want to buy, but for example, if I want to buy a coat and find that I don't like it when I go to the mall, I have to shop around to buy it, sometimes it takes a long time to shop around. Some people have no strong purpose. They just want to go shopping and see what they need to buy, so they will buy it when they see it in the shopping process, and it will take longer.