Good point. I had thought of this reason and it seems the only reasonable one to be honest (as I have just watched Horizon on BBC2
)
Although, on the flight I was on it stated 'radios' and gave a picture of an old '80s style radio, indicating that even normal music radio were banned - hence the reason why I asked if there were any electronic interference issues.
I suppose tho it is easier to ban all of them from a flight attendants point of view??
Thanks for the sensible reply!
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