The Supreme Court agrees with you, but the Constitution doesn't. And it is demonstrably false that a school cannot impose a rule which would otherwise be unconstitutional in an adult setting. There are a litany of cases, but one is New Jersey v TLO, 469 US 325 [1985]. In the TLO case, a search of a student's purse, the purpose for which was to find cigarettes the student was suspected of smoking on school grounds, was upheld. This is because schools must act "in loco parentis" (in place of the parent), while they have possession of the students.
Think about it this way - your 6 year old is in the 1st grade and wants to leave class and run out into the street. Should the teacher - an agent of the government in your view - "unconstitutionally" detain the child?
"Fourth Amendment rights, no less than First and Fourteenth Amendment rights, are different in public schools than elsewhere; the "reasonableness" inquiry cannot disregard the schools' custodial and tutelary responsibility for children." Vernonia School v Acton, 515 US 646 [1995].
I'm not trying to be a wiseacre, and I think we are on the same page. I don't accept the assertion that the federal government has any business interfering in local schools, but thats for another thread.
The bottom line is that in Kentucky, it is lawful to keep a pocket knife in your glove compartment on school property. But it is also true that under the law as it now exists, schools - in their capacity as quasi parents - may imposes rules which would otherwise be unconstitutional.
This still is not legal advice. :thumbup: