Replying to 5'th amendment and school

i read this on another forum and thought it was pretty good, so this isnt my idea, but i think he is right.

- by law you have to attend school
- at school, you have no rights, and can be searched and stuff
- by law we are forced to go to a place with no rights
- What happened to the 5th amendment? the right not to incriminate yourself? I would not be incriminating myself, if I weren't forced to be here, right? is there some loop hole i'm missing? Is the law allowing illegal searches?

doesnt really affect me, but i thought it was a good topic, so what is your opinion on it?