Ok how about on airplane mode only so I can still read but not recieve any calls? Also ban is a bit strong with how it actually works - I mean how do you reall

Ok how about on airplane mode only so I can still read but not recieve any calls? Also ban is a bit strong with how it actually works - I mean how do you really enforce that? The air hostesses go around do a quick look but they can miss things, also phones in hand luggage cannot be checked and people can forget it is on, the terrorist scenario I paint above... I mean I design controls for a living and this just does not seem that effective to me if the risk as you say is very low liklihood, very high impact. Surely a real study needs to be done and if it is really a risk a more effective control like a jammer or electronic tool to detect when a phone is no be put in place. Or are you arguing that most people turn them off because they get told to and that is enough to mitigate the risk?