People are required by law to attend school. Private education is not available to everyone. Even without monitary concerns.
any school receiving federal funding must adopt policies that allow teachers and school officials to conduct random, warrantless searches of every student, at any time, on the flimsiest of pretexts.
Amendment IV
The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no warrants shall issue, but upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
People must attend, and because they are attending they must give up rights that the 4th amendment clearly grants.
I must be missing something.