My only comment is being able to call emergency services wherever you are is very useful. Pre-cell phone times was just hoping there was a landline somewhere. And you weren't able to get instructions from the operator and be with a fallen person at the same time.
Can't you just put your phone in a shielded bag, and take it out if you need to use it?
Yes, but this feels like the modern equivalent of wearing a tin foil hat :/
more like the equivalent of wearing a bullet proof vest