Most universities have flea markets. When I graduated from college, I joined a flea market and basically sold some useless things to some younger brothers and sisters. I think this is actually quite good, because it is actually more conducive to the reuse of things. Because if I don't sell it, I will probably throw it away, because after all, I won't take so many things home, and if it's a game, it may not even be as good as some postage, so I will choose to sell all these things for my brothers and sisters. If they don't buy second-hand, they need to buy new ones, most of which are actually more than twice as expensive as second-hand. Actually, it's not that necessary When I was a graduate student, I joined such a flea market when I first went there, and I also bought many things necessary for my life, such as a kettle Mazar and some chairs. Because things in our school are more expensive, if you buy me a thermos, it may cost 50~60 yuan, but if you buy it from a flea market, he only needs 10 yuan. So for me, I feel more favorable and save me a lot of money. I also bought a bike in the electronic market. Because my school is very big, if I want to do experiments next semester, I need to travel far every day. Basically, the lab takes half an hour. So I spent 100 to buy a second-hand bike, which is convenient for my daily travel.
To sum up, this is what I think of as a flea market in universities. Basically, every university has its own flea market, and many people will participate, because after all, things like this are quite favorable and very beneficial to students.