> Wait a minute, wut? Explain to this former colonist what cultural cue he's missing, because how is it possible that 42% of a country's population lives in public housing? Or is it not "public housing", as in U. S.-style subsidized housing? Or were times just that bad in Great Britain in the 70s?
There were a few factors.
1. Yes, many people were very poor. Today, many Britons are still very poor.
2. In the war, an awful lot of housing was destroyed. Entire towns (Harlow and Milton Keynes are prominent examples) were built from open countryside to house the displaced. The overwhelming majority of this housing remained in government ownership until Thatcher's 'Right to Buy' reforms, which are the origin of the present housing crisis in the UK.
3. Prior to the war, the United Kingdom was the most densely populated country on Earth; during the war, people 'mucked in' to help each other during the nationwide trauma of Total War[0], and after the war, returning servicemen and servicewomen demanded that the sacrifices made amount to something. The governments formed by the Labour Party from 1945 to 1980 instituted a great many social reforms - the National Health Service, expansion of state schooling, social care, and so on - that made good on these demands, and were seen as improvements to the nation, rather than government overreach.
[0]: https://en.wikipedia.org/wiki/Total_war