They should because they are cool and easyer to use than chrome books, or laptops, or anything like a chromebook or laptop. Also they can be used for emergency and to contact family or friends or even find your pet. Texting is also a use that is awesome school bye
Some people learn better by this. Listening to their own music could probably boost their focus in activities. There are schools that allow it now and it is an improving thing between school districts. Why not unblock the ban and give students a chance to prove how mature they can be instead of treating them like kids all the time.