Is it appropriate for primary and secondary school students to use mobile phones? Who can say!

Because I am a graduate student this year, I know the psychology of primary and secondary school students very well. There are two main purposes of using mobile phones. First, keep up with the competition, be cool and win face. Second, find a girlfriend with a mobile phone. This is not conducive to children's learning, and even causes children's comparison psychology. How many children can really call home with their mobile phones? Personally, students' main task is to study, and there is no need to use mobile phones during this period.