You have no right to privacy with another persons child if the parents don't want that.
No I'm not wrong. A student in a class room has no right to privacy from parents of other students in that classroom.
Notice kids who record school fights in class and post them on youtube are not sued for violation of privacy? There's no expectation of privacy.
Let me guess, you think being recorded in public without your consent is violation of your privacy as well?
I do agree people should take their kids out of public schools, but not because of cameras.