Why do some people like collecting stamps?

Everyone has his own hobbies and things he likes to collect. For "Why do some people like collecting stamps?" I have my own opinion on this issue. Stamps are collectible. They can bring people the exchange of letters, bring different feelings and bring people closer. I remember the first time I saw stamps when I attended an activity at school, because in my impression, letters and stamps were used for communication in the last century. In my impression, writing letters is a very distant thing for people in the new era. In the activities organized by the school community, I got my pen pal by writing letters. I remember when I received a letter from a stranger, I was a little excited, because it was the first time I received a letter from someone else. I found a small stamp like a stamp printed on the top of the letter. This is the first time I have come into contact with stamps. Later, I established a pen pal relationship in the official account of Ding Baizhiyou WeChat. I was surprised to find that there are all kinds of stamps in the official account of WeChat. Although it is an online "stamp", I am also very happy to see so many kinds of stamps, and the collection behavior has been out of control since then. In fact, everyone has their own hobbies, big or small, but sometimes they may come late! Stamp collecting is not only a witness of communication between pen pals, but also a symbol of stamp collectors.