Schools are tasked with trying to solve all manner of social problems. Kids didn't show up? Blame the school for not dragging them in. Kids cheat? The administrator has to deal with it. Kids are fat? Must be that the school isn't managing their lunches. This is what they have come up with.

Personally, I think surveillance tech provides another way to exfiltrate dollars from the school system while at the same time providing rear-end cover. Look to see if the vendor is either (1) barely competent but policitically connected or (2) a startup cashing in...