text: When it's lunch or break time than they could call their parents or whoever their parent is and ask what's going on and if it's nothing serious than they don't have to worry anymore. But if it's serious than they could go to the office and ask them if they could leave but it wouldn't be ok with the office because your parent has to be at the school to sign you out for example yesterday my mom came to school to pick me up early for an emergency so she had to go in the office to tell them that i am here to pick up my kid.      Personally, I believe that there are many advantages to limiting usage of a motor vehicle. There would be less air pollution, quicker public transportation, and more social contact.