School's are unique to the western human experience in that they are one of the only things you can't really "escape". We mandate children go to them, they have no choice in which one they go to, they have no ability to "quit" one and go to another if they don't like it (i.e. while this is not entirely true of employment, it's true enough and the effects on adults when it is not are pretty similar degrees of psychological trauma from hostile work environments and workplace bullying).