When I were a nipper, I one day found myself taking a butcher's around the RM's sorting office in Swindon. A big place, giving you a behind-the-scenes snoop of what happens after you post your letters/parcles, blah. Meaning, it's quite complex, quite clever how it all works. Meaning, if I were to deliver any letter myself, to any location in Britain, and promise to have it delivered the next day, then how the heck would I be able to drive from Somerset to, say, Glasgow, for the same price as that of of a stamp? I ain't none too hot on directions, either. I reckon I would waste half an age just trying to find the place, wasting more fuel, time, ££, etc..... So I leave all that malarkey for the Royal Mail to take care of.
Touch wood, I've never had as much as one single issue with the RM. In fact, I appreciate how it all works. I even make sure to bung a few shillings to our Postie man/woman every Christmas, bless their little street-bound feet. Besides, what about the times when the RM do get it right, but it's the customer who gets it wrong? Nobody whinges then, do they? I personally know of at least one particular bozo who stuck a 2nd-class stamp where a 1st-class stamp should have been, then, when it arrived (late), the poor bloke at the other end had to stump-up the remainder before RM would release it.
...isn't that right, Monsuir Jaquette?