I have flown 4 Ryanair flights within the last month, each delayed due to ATC restrictions! Not the airlines fault of course, but so frustrating from a passenger perspective when you have booked onward public transport in the form trains or pre booked Uber!
On each flight I witnessed so many passengers getting up to get something from their hand luggage in the overhead locker or to use the toilet even with the seatbelt sign still on! Cabin crew repeated attempts over the PA requesting they return to their seats and fasten seat belts sometimes fell on deaf ears! I noticed this happens most of the time once the cabin crew are moving around, roughly about 5 mins or so after take off.
I think Ryanair need to adopt an announcement like Easyjet have, when a few minutes after take off, the purser announces something along the lines of "Very shortly, the cabin crew will be released from their seats, please continue to observe the fasten seatbelt sign until the captain has switched it off".
And then upon landing on Easyjet, I heard the pre-recorded announcement "shortly the cabin crew will be released to perform safety related duties, please continue observe the fasten seatbelt sign until the captain has switched it off".
I think some passengers are just plain stupid, inpatient or ignorant?! Anyway, regardless of the reason(s), something needs to change! This is a safety issue, as some of the flights I was on, encountered moderate turbulence and given some of the instances of passenger and crew injures earlier this year due to inflight turbulence (although I know this is unlikely, but not impossible) it really needs to be addressed more strictly in my opinion, maybe with an announcement by the captain with the threat of diversion if passengers don't follow the rules from the cabin crew!
Although I have witnessed worse, when flying in eastern Europe when cabin crew completely missed some passengers who didn't even have their seatbelts fastened for landing! Don't know if this is a cultural thing or not, but the majority of my flights taken place in northern and western Europe and in my recent cases where between UK, France and Greece with UK based crew where I find safety is taking that bit more seriously.