You don't state where this is happening but certainly within SE Asia, pax are still quite disciplined and follow the signs.
I'm sorry, I forgot to mention it's happening in Europe. Yes, people in Asia are more disciplined and more inclined to follow the rules. That was also the case in Europe in the past but it's been changing over the years.
Originally Posted by
Andy_S
Not sure what the CC can do when the passengers leave their seats en-masse.
Yes, a fine is one of the possible solutions. But they could also shout loud on the speakers (it happened once when someone stood up while the plane was still moving) or walk through the cabin to get people fasten their seatbelt. Passengers must see things are taken seriously because lack of reaction is seen as a silent permission. People see there are no consequences for breaking the rules and that always leads to more people breaking more rules.