What's the point of joining?

In all of the organizations I am apart of, I see people who just don't commit themselves, people who don't exert themselves, people who don't share their opinions and people who simply don't do anything. And I have to ask, what's the point?

Why do people join organizations, play sports, go to class, go to college or do anything if they won't commit themselves. Put it this way... in one of the best life lessons I have ever received, a friend of mine's brother said to his younger brother (my friend) who had just failed a class, "Think about the time you have wasted, you attended a four hour class for ten weeks, that cost you forty hours of time. Then you did all or some of your work for that class, which we will say conservatively, is another hour each week, bringing your total up to fifty hours. That is fifty hours of your life wasted because you didn't care." My friend and I were both shocked at the reality of the comment, the silence sat in along with the truth of his statement. "What was the point of you ever going to that class, you should have never even gone because you just have to do it again".

This is a perfect example of my point, what is the point of joining. Why do we go to class if we aren't going to give our full effort? Why do we join organizations on campus or anywhere else if we don't intend to exert our efforts and share our opinions? The famous saying, "You get out, what you put in" is derived from this lesson. If you are going to do something, get it's full value, commit yourself. Don't be complacent, don't wait for people to tell you how it is gonna be, instead tell them how it is. Create your own success and give your full effort, otherwise just sit out and watch the people who are willing.