Originally Posted by CessnaJock

What truly amazes and mystifies me* is that any carrier or FA on the planet doesn't know what flight mode is all about by now.

* And scares me - but only a little.

Originally Posted by xeguy

This is not an unreasonable request if it's the airline's policy. That's based on the numbers of people who can hardly distinguish and/or determine if their device is "on" or "off", let alone in some other mode.