It really does depend, you may be earning that but have 2 people to support. If you wanted to live in the centre of Cambridge though you would likely need both parties in the relationship to be earning that amount I order t meet mortgage payments and still be able to afford to eat.
I spend a lot of time looking round at the cars on the road, the luxury purchases people are making, the cost of houses and wonder if they are largely self employed and lying about their earnings, if they all had large inheritances at some point, or if they are all just living in a lot more debt than I am.
For reference I think the average wage in my house in house is about £38k, so above average, but i don’t feel rich, I also don’t have any real money troubles and have just got back from a trip to NYC, so I am by no means complaining. I would also say I not as good at managing my money as some of my friends!