Wot 'e sed, and, also, the check at the aircraft door may well be the first opportunity for a direct employee of your airline to look at your boarding card.
It is very much in their personal interest to be sure that you are on the correct flight.
Y'know, when I travel by rail or on the London (or anyone else's) underground, I have my tickets, Octopus Card, Oyster Card readily to hand; is it too much trouble to have a boarding card ready for inspection? It is not a personal attack; it happens to everyone, even captains when they are travelling as passengers and, more importantly, to every A-list celeb who turns left at the door.
We love you; you are our passenger, our customer who pays our salary and by doing so my pension. Please continue to fly (esp with my old airline) but keep your boarding pass to hand.
