Applying adult standards to child behavior is so fraught with flaws, I don't even know where to begin. Suffice it to say that, with near universal applicabilit

Applying adult standards to child behavior is so fraught with flaws, I don't even know where to begin. Suffice it to say that, with near universal applicability, all human societies throughout recorded history have made clear distinctions between the boundaries of acceptable social behavior (and punishments for breaching these boundaries) for children and adults. There's also quite a large accumulated body of modern scientific measurements which suggests that children and early teenagers lack the sufficiently streamlined cerebral pathways (pre-puberty) which would allow them to make the social judgment calls and impulse control to both avoid being a bully and/or a bullied victim. In both roles, they can not balance the short-term costs against the long-term consequences. You also make a gross assumption about the training and responsiveness of a local police force to situations involving minors in the custody of a school. Baring extreme violence, a history of criminal behavior, or property damage, in most municipalities, this is the fiduciary responsibility of the public school district. For private institutions, a specific set of liability clauses and insurance is part of the enrollment contract.