I don't like the focus on generational differences in the UK because a lot of the tropes are American in origin and don't fit the British context.
For a start, Britain really didn't have a significant baby boom post war. There was a sharp rise in the birth rate in 46 and 47, but that was about it and that was compared to the very low birth rates between 39 and 45. The situation in the US was very different.
Again, Britain saw austerity and rationing until the 50s. Not so in the US. We also had significant industrial slum issues and a requirement for the state, at a time of national debt caused by the cost of the war, to provide services and facilities en masses to the populace because so much British wealth had been destroyed between 1914 and 1945. Crikey, we only finished paying off lend lease about five years ago.
Yes, the deaths of thousands of men in both the wars opened up the space for "social mobility" for those born in the 30s, 40s and 50s, but the vast majority of children born in that period grew up in rather substandard housing with no bathrooms, outside toilets and were expected to leave school at 16 to work.
Then, of course, we get to the 70s and everything falls apart.
This is massively different to the situation in the US.