1. Some educational institutions will exaggerate their teaching achievements and teachers' strength. Publicity can make students easily enter famous schools, but the actual effect is not as good as the publicity.

2. Some graded education institutions are opaque when charging fees, and they will adopt the method of installment payment or class time billing, so it is difficult for parents to grasp the actual expenses.

3. When students drop out of school for some reason, some educational institutions will refuse to refund or only refund part of the fees for various reasons.