Freshmen are full of curiosity about college life, and everything is strange when they first enter the university gate, so all kinds of clubs in the university are full of freshmen's life. The community is a place for freshmen to exchange and study. Some clubs will recruit members by charging, because more people will join the club. Some clubs just want to make friends or have the same hobbies, so they can join for free. No matter what kind of club, people who play in the club are basically freshmen and sophomores, and they are all using the club to develop contacts, which is also a good way to understand universities and freshmen.

You can choose what you like to join, but you don't have to join.