I don't care how "boring" or "routine" it is. A zero-tolerance policy needs to be crafted around all these devices that are just making us dumber as a society, and LESS SAFE as pedestrians, drivers, and passengers.
Agree, they're a real distraction, cars/trucks need to be even louder these days, to compensate for lug-hole plugging devices, whilst vehciles are getting quieter in fact... pedestriand beware.
As for the flight deck... must be very addictive to even be considered as acceptable