Form an overall perspective, there are variety of reasons why people believe that students should choose what they would like to study.Second vital reason is, (Secondly) students who are forced to attend classes of subject they do not like may disrupt/disturb/distract their classmates who are interested in the subject.Therefore, the decision as to whether students should choose their own subjects must be taken in the context of the whole educational ecosystem.If a student does not know how to do basic calculations he will struggle for the rest of his live and this in turn leads to psychological problems such as anxiety or depression.Perhaps the main reason why people in favour of this idea is because students will be more interested in the coursework if they have chosen their subjects.However, if he is studying a subject that he hates, most probably he will get bored, unmotivated and even depresses.Perhaps the main argument in support of this idea is that some subject are fundamental and cannot be left optional.