Adult rights vs. Minor rights

So it's not ok for a minor (under age 18) to leave school unless a responsible adult with PARENTAL PERMISSION signs that minor out. But it's OK TO HAVE A SCHOOL NURSE VAVCINATE YOUR CHILD WITHOUT OTICE OR CONSENT OF THE PARENTS, INSTEAD BRIBING A CHILD WITH THE PROMISE OF PIZZA!?!?

WHERE ARE YOUR MORALS? Apparently, they NEVER HAD ANY TO BEGIN WITH!!