Just make a note of it ... this is going to be a legal problem for schools. It might be a few years out yet, but it is going to be an issue.
We are already placing RFID chips on students in many districts and so it is the next logical step to just integrate the technology directly into the school uniforms.
If you want some more academic background on smart clothes and the current and future possibilities, it is worth checking out this symposium that was held at Radcliffe Institute at Harvard.
What do you think? Any reason to worry here? Lots of folks seem okay with the RFID concept, so this just seems a logical (and perhaps acceptable) extension of that.