@ambermorning
Totally agree chocolatecrisps. I would say though. I don't think married couples with separate finances are 'the norm' in the U.K. though. When I read things like, "he paid for the holiday, it's like a totally different world to me too and it's hard to relate. I think maybe people with separate finances are just more likely to post on threads about finances? But I don't know really.
I can't get my head around this 'my money/your money' mentality either. I know a few couples - 2 married, 3 not, who have separate finances, and in every couple HE earns more. He doesn't want to pool finances (unsurprisingly.) 
Me and DH have been out with a couple who have been together 17 years - unmarried, She wants marriage, he doesn't. She wanted children, he didn't. Late 40s now. He earns 2-3 times more than her, and I have seen her tipping coins out of her purse to pay for a drink in the pub, while he flashes £20 notes galore. And she shops at Primark while he shops at Next, and does her own hair as she can't afford the hairdresser. HE goes to the hairdresser every 6-8 weeks. I have also seen him steal money from her purse. She thinks she has lost it or spent it. He spends loads on his hobbies and flashy holidays with his mates. (She stays home because she can't afford the exotic holidays.)
His wallet is zipped up tightly while she struggles.
I can't say for certain as I have never asked, but I am guessing he made her pay half on their first date.
Utterly shitty relationship IMO. I wouldn't lower myself to being with a man like this.
As I say, I also know some other couples who have totally separate finances, and he lends her money that she always has to pay back, and he pays for their holiday, and she pays back her share to him weekly. Totally fucking bizarre. Me and DH haven't had separate finances since before we were married.
Some women need to raise their bar, and ditch these shitty excuses for men.
As I said, I am willing to bet every single one of these men, insisted on splitting the bill on the first date, and sat there poring over the bill, with a calculator, making sure he didn't pay for anything he didn't have!
shudder Imagine having such low self esteem that you would stay with a man like this. Grim. And scary. AND depressing!