One of the major problems is of the airline business' own making. Here I speak collectively of all carriers. Most regular flyers know about the law and needing to obey it but 99% of Pax do not.
"Your safety is our first concern blah blah" but they NEVER say that you have to do as you are told. If pax knew why - it would be better. But, across the last 40 years of mass travel, most pax have been told THEY are the most important person.
When this is coupled with the modern sense of 'I can do anything - no one can tell me anything' then conflict is only one sentence away. The carriers need to start letting the pax know the full story and WHY. It's no good putting it in the Ts&Cs but most carriers will shy away from it as telling the pax how beautiful and perfect they are - will always appeal to the Board and CEO.