Although this is obviously about airline passengers, may I just add a little note about my fellow cruise passengers.
If you have witnessed some ‘uninformed’ behaviour, shall we say at airline security queues, check out cruise passengers who are mostly more senior, and don’t often go through security.
OMG pax after pax, not listening to the callout about emptying your pockets, take off jackets, everything in the tubs, etc., etc. Get to the front of security queue and go, oh, do I need to empty this and this and this and this and this and this and this. Take out items out of pocket, one by one, and checking the security if they have to do more.
Then needing to go through the people metal detector a couple of times because they’ve forgotten bangles, watches, necklaces, you name it.