First of all, it is true that people do not always understand their rights. As was said earlier, people who do not travel much are more nervous, especially in front of a person in a position of authority, and they do not want to make waves when they have to go through security. This is a difficult situation.
In addition, these are all different companies. Should they unite? Should the airport authority that hosts all these agencies do more advertising to tell people that they have rights and to assert them? This is a good question. I do not really have a suggestion.