text: Some students may not be in a extracurricular activity because the school simply does not have one that interests them. If you make students choose an activity then they can be bored out of their mind. Since students are bored they probably will not participate as much and things will not get done as productively. Since stuff is not getting done properly that may not be fair to the students that actually want to be there. Finally some students may even skip their activities because they don't want to be there.