BAD idea! Very bad idea, indeed! Kids already do not read enough; we are already far too dependent upon electronic gizmos and devices. A single EMF pulse could wipe out all the electronics in the school. Physical books are not subject to damaging electronic surges.
Then, there is the matter of batteries that constantly need recharging, and eventually, replacing. Then, disposal becomes a problem--we are already seeing specialized "e-waste" collection sites because of the assorted hazardous materials found in our modern electronics.
I say, simplify, and do not further encourage such total dependence upon electronic gadgets.