1. school regulations: the school has its own regulations and decided not to open the library. This is because the school has limited resources and cannot provide students with the opening hours and services of the library, or the school thinks that students' activities outside the library are more important.

2. Difficulties in maintenance management: The library needs special management and maintenance, including book purchasing, book sorting, book lending and return management. For some primary and secondary schools, maintaining and managing libraries requires a lot of manpower and material resources, so they choose not to open them.