There will definitely be some schools that will turn afternoon delayed service into self-study classes, and even senior classes may become classes. Moreover, some parents can't get in touch until 6 o'clock, and they still have to report to the off-campus custody, so some parents will choose to report directly to the off-campus custody if possible. Moreover, the delay in service will increase children's time in school. The public school itself is a more serious and sacred place for children, and it has certain constraints on children. Over time, some introverted children will feel depressed.