I actually find it rather entertaining to find how the general passenger attitude varies on different routes and airlines.

From a safety perspective, obviously not great that passengers seem increasingly unable/unwilling to follow simple crew instructions. Not sure what actual harm the use of mobiles and electronic equipment can potentially cause, but that's sort of not the issue.

I don't do 'told you so's - but I'm quietly waiting for the day when someone seriously injures themselves or others by falling over or dropping a 30k carry-on at that final shove towards the gate. I just keep hoping that 'others' won't be me.