tishu paper's wonderland

Discussion on the attitudes of students occured today between me and my teacher, she had been facing serious attitude problems of students keeping silence when they are required to sing the National Anthem and our school song. What is exactly the problem that caused this? I personally think that it is the habit that keeps causing the disiplinary problem among students, students are not strictly observed when they are in the first years, forming a kind of unwilling to do something foolish for someone else unless they think the action they do is acceptably something not foolish among teenagers. Teachers should also be responsible for this as they are the living examples of students, I don't see any of the teachers singing our National Anthem or the school song, except few of them including the headmaster and some of the admins. Teachers, understand what our ancestors left behind, teaching is not just only by words, but is also by action.