“he rules are quite clear - sit down, fasten your seatbelt, turn off your phone and put your seat and tray table up.”
The rules are arbitrary and changing. Ten or so years ago reading a kindle during takeoff and landing was not allowed and now everything except a laptop may be used.
>> The rules are arbitrary and changing. Ten or so years ago reading a kindle during takeoff and landing was not allowed and now everything except a laptop may be used.
Changing rules - yes. Arbitrary - no. Before I retired in 2004 I was one of the engineering team members of a NASA / FAA / Delta / SkyWest / United project that did the initial research leading to the approval of cellphones on aircraft. See:
https://www.researchgate.net/scientific-contributions/Gerald-L-Fuller-34123166
Fuller (not me) was the lead engineer. After several million $$s of industry and NASA money spent over 2+ years, it came down to “Pull out your pen and sign the approval”. Five of us took a deep breath - and signed. All was well. We won a DARPA award for the project.
After those first steps, the industry has done lot more research. That’s your “changing rules”. More info if you wish in a private chat.