And "thank you" FrogTastic; your comments are oh so true.

But in this thread and with the use of the "MUM" spelling I think it comes as huge shock to many of us from the "polite side of the pond" that there seems to be small but significant population "over 'ere" who completely abdicate all responsibility for their offspring whenever they leave their homes.

Same goes for the actions OP describe upon boarding the bus out to the aircraft. Sadly, all you can really do is ignore the loud obnoxious parents - for they are really by far worse than their kids.

As for seat stealers; glad to hear you stood your ground. Far too many are too meek to demand in no uncertain terms that such stealers vacate the un-assigned seat.

BUT, for all you folks from civilisation, just remember that when you leave the land of afternoon tea and scones you are saying goodbye to manners, politeness and dignified behaviour!