Children generally behave normally, and teachers will not contact their parents. If the performance is abnormal, parents should be informed, such as failing too many courses, being seriously ill, violating rules and regulations, etc. Weekend holidays and other time periods will not be notified if you are not at school. In addition, the management of universities varies from place to place. Some universities need to ask for leave when they leave school, while others can enter and leave at will. Students in universities must be adults.