I'm 100% in favor in banning smartphone during school hours.
The big danger is to spread the incorrect conclusion "it's smartphone's fault". For example, if it is social media, then, we need to change social media, not just ban smartphones, because it will not stop social media to do even more victims, and the number of victims will be bigger if people were convinced by the incorrect conclusion.
The big danger is to spread the incorrect conclusion "it's smartphone's fault". For example, if it is social media, then, we need to change social media, not just ban smartphones, because it will not stop social media to do even more victims, and the number of victims will be bigger if people were convinced by the incorrect conclusion.