People around us watch us pick up the express every day. People around us laughed at us and said what express we bought. What should I do if I buy express every day?

Your own courier belongs to your own personal belongings, and others are not qualified to take care of it. If people ask, tell them if you want, and don't tell them if you don't want. This is your freedom. It's like taking your own shopping home. Why do you have to report it to others? I have a lot of express delivery myself every day, directly reporting the code or picking up the pieces myself. I have nothing to say. People around me saw me pick up the courier or something, and they didn't come to say anything. I don't think you need to care about other people's opinions, it's entirely your own business.