I think the point was that if a theatre installed jammers, then patrons could not receive calls. Yea, I get that no one wants to overhear someone having a long chat with their significant other right as the plot line thickens, but a doctor on call or a parent who's kid is just got hurt at the baby sitter might appreciate being able to receive a call or text while their phone is on silent. They can then step out of the theatre in order to take the call or call back.
That said, I totally agree with you on your main point. This is often a counter argument when people suggest that mobile devices should be disabled when the car is in motion (which isn't necessarily the same thing as jamming). Often, when I'm driving, my wife is looking up directions or letting a family member know that we're near.
That said, I totally agree with you on your main point. This is often a counter argument when people suggest that mobile devices should be disabled when the car is in motion (which isn't necessarily the same thing as jamming). Often, when I'm driving, my wife is looking up directions or letting a family member know that we're near.