A concern I have is that neither the on board video or safety demonstration is graphic enough. In the same way airlines don’t show aircraft disaster movies, the demos are so sanitised they give no idea of what actually happens in an emergency. In fact the video is a bit like a game where cartoon characters evacuate a totally intact and orderly cabin and it’s nothing like that.
Thankfully my experience of an aircraft evacuation in an emergency is limited to Aircraft Investigation but that’s what needs to be shown as well as the consequences of getting your hand luggage, waiting for friends and so on. Only then will people sit up and take notice, as while rare, these incidents do occur.