At my university we had to sign off on a sheet of paper for each class to document we were there. How does carrying around an RFID improve that? One could simp

At my university we had to sign off on a sheet of paper for each class to document we were there. How does carrying around an RFID improve that? One could simply carry the chip cards for his buddies to class or to protest the system just wrap all chip cards in tin foil and claim the system obviously failed. This is much easier than learning to fake signatures. Apart from all that, as a student you should be mature enough to decide which classes you have to attend and which ones you simply study for on your own.