I have a feeling it is something much more descreet and secretive going on and plus for so many on the net to point it out too!!!
If there was ever an emergency and someone needed to dial 9-11 which most are choosing not to do these days as to not get killed by mean police, it would be a hassle to try to make an emergency call when the person doesn't even know his cell turned to airplane mode!
It's obvious to me that someone is behind this and it deals with eavesdropping and privacy invasions!
airplane mode cell problems link here:https://www.google.com/webhp?hl=en&tab=ww#fp=9a975e048e4bd6d6&hl=en&q=cell+phone+automatically+switches+to+airplane+mode