I am constantly boggled by the UK wages I read about on here, and I am very glad I left a long time ago! My first proper job was graduate trainee accountant, I started on 13660 UKP in 1991, and within four years as I qualified I was on over 25k (can't remember exactly). I left London (and the UK) in 2003 and I was on around 37k. So seeing some of the figures on here just blows me away, especially considering house prices.
As a contrast, here in Western Australia, two sets of friends have just built lovely 4 bedroomed houses, a short drive to the beach. One couple is a hairdresser and a decorator the other a butcher and an admin clerk. Each have two cars and a very comfortable life. All my friends teenage kids are working in the usual jobs, fast food, supermarkets etc. My 20 year old son's basic wage is $21 an hour, with more for evening and weekends, he gets over $30 an hour for working Sundays, and over $40 for public holidays. A friend of his works full time as a delivery driver, he earns $70k pa, I told him that in other countries this is piece work that pays badly, he couldn't believe it when he googled!
I have no idea really why there is such a massive disparity between the two countries. I understand the economic theory that high wages lead to high prices, and yes, a lot of things do appear to be more expensive than in the UK, especially if you are here on holiday spending your UK wages, and making the conversion in your head when you spend. But they are comparatively cheaper if you are on an Aussie wage. I am not trying to turn this into a n Oz is better thread as I know I would get crucified but I really think something has gone badly wrong in the UK, whether it is the Tories, or Brexit, or what else, who knows?