1. To play the app, users need real-name authentication. Most primary school students haven't applied for ID cards yet, and they can't do real-name authentication without ID cards.

2. Playing app is an online board game software, which contains many small games. Pupils have weak self-control and are easily addicted to it, which affects their learning and growth.

3. Playing games in the application is mainly for entertainment and relaxation. The users who play are numerous and complex, and will match all kinds of people. Too old and vulgar language is not conducive to the simple physical and mental health of primary school students.