Got a mate who's single without kids living in Central Scotland on about 45K, he's minted. Multiple holidays a year, lives in a wee studio flat near the centre of the city and doesn't even need a car, just rents one if he decides to do a trip.
How you use your money, especially in your 20s is key. He has no mortgage as he paid it off in his 30s. Clever guy - which I'd done that
I’ve got a buddy that’s similar. Single, very smart, doing a pretty trivial job by his standards for good money. 6 mile commute 4 days a week. Does what he wants, when he wants with decent cash reserves. Lots of free time and plenty of cash to enjoy it. Nice house paid for by 30~
Im seeing a pattern here. Single, no kids. That's the key to financial success!