I'd guess it's because even small thing as band can provide some of kids distraction. It's not about if you can play games on such device but play with it, touc

I'd guess it's because even small thing as band can provide some of kids distraction. It's not about if you can play games on such device but play with it, touch, wander around the interface - had enough distraction to not focus on class and teacher. Bands are being perceived as digital rattles here.