Here's a poser for you, why do they sell luggage at airports?
Take a look next time you're travelling abroad, wherever you are in the globe. Every single airport will have several concession stands selling carry-ons, valises, backpacks and suitcases, luggage.
Now, call us overly prepared, but surely if you've got as far as the airport, chances are you're ok for luggage, clearly not. Clearly these shops have sprung up to facilitate the ever-growing idiot convention that meets daily outside your door. In this instance, these shops are required to help moronic holiday makers staggering up to the check-in desk clutching bundles of clothes in their arms, wishing there was an easier way.
While we're on the subject of travel, apparently 70% of British citizens own a passport. That means there's a group even more dense than those buying luggage at airports. About a third of us have no interest in expanding their horizons by literally expanding their horizons. In this day and age, when it's often cheaper to holiday abroad than it is to do so in the UK, there really is no excuse and so it goes, the idiot convention continues to thrive.
And we can't do a thing to stop it.