Same goes for parents with babies and toddlers. You get to board the bus first then when you get to the aircraft you have to faff about for so long trying to find out where you leave the pushchair (near the steps, near the bus, near the guy in the yellow vest), everyone else has boarded the plane, taken the aisle seats and used up all the space in the overhead bins with their gargantuan carry-on luggage.

Budget airlines: why have the convenience of checking your luggage into the hold when you can fill a polar expedition-sized rucksack with two weeks worth of clothing plus presents for the family back home and take it on board as carry-on?