Do I have to join a sorority?

[Ittybitty]

I recently found out that one of my close guy friend who moved away for university joined a sorority. I was completely in shock. I was always though joining a sorority is like signing up for a cult where you get bossed around and become random people's b**ches just for a title you will never need.

I feel that the whole process of joining a sorority was founded for people who don't have any confidence in themselves and depend on weird cult like clubs to build relationships with other human being. Personally, I could not stand being told what to do and I don't find it appealing to become close to someone just because they're part of the same club as me. In my opinion, there's so much more that goes into picking friends than just being part of the same sorority, including interest, personality, values etc.

I researched into this question, but it doesn't say anywhere if it's a common thing for university students to join a sorority. Just on average, how many people do you think join sororities in university, and does it really matter if you don't want to be in one?

I want to go to university to learn. Friends are important to me but I don't want to dedicate too much time on them. In the end, I want to become successful rather than live in an odd cult like fantasy.
Also, I'm not trying to offend any of you cult people. I'm in my senior year of high school and I'm still trying to find out more about these things.