Schools being off limits for the "safety of the children" has two real goals. One to try and protect the School from Liability suits and two to Keep the parents in the dark about what is happening in the schools. The actual safety of the "Children" is irrelevant.
Here safety things are fairly loose and schools are paid for by mining and land lease money instead of direct taxes. Our local high school even allows the baccalaureate service to be held at the school with local Pastors and Priests speaking.