Students Should not Bring Handpone to School.

Students should not bring handpone to school.
why I say that?
First, students can not focus on the lessons that the teacher convey. This is because students would rather play with handpone than listening to the lesson material.
second, students will lose a lot of subject matter. because the time to learn will be used to play with handpone.
Third, handpone can be taken to school. as it is known that at any time conduct raids handpone school because school rules say that students are prohibited from bringing handpone to school.
So, students are not allowed to bring handpone to school because they can have a negative impact for students.