I'd be a little surprised if 50% of cell phone owners even know how to turn on Airplane Mode.

Yes, I know it's usually right there on a screen you'd think they'd look at pretty often.

I stand by that.

Beyond that, several on every flight who might do it, will forget to, and several more just don't give a fuck. Despite this I've never once seen anyone get hassled over it.

How would attendants even know to hassle someone. Yes, there are some people who pay attention to the announcement and some others who want to preserve their battery. But, yeah, I'm guessing well south of 50% turn on airline mode at least in the US--and I'd probably be a bit surprised if Europe were that different. Certainly no one makes a show of caring all that much these days as they did when turning off cellphones was such a big deal at takeoff.

> How many people do you think actually do this. (I mostly do, when I remember.) I'm EU based and not flying every day but any flight at all it's always in airplane mode. It's like a seatbelt on a car for me, it's just done.

I'm biased but I would like to believe most people remember,

That is almost certainly optimistic but given that planes are not falling out of the air or reporting a lot of electronic interference issues it's probably OK as things stand.