There is a certain arrogance in those over 50 when they look back and decide that everything that has been gained for them during their life time, has been down to them, and only them.
Prior to the war capitalism ruled. It didn't matter how hard you worked, the majority earned little more than it took to keep them fed, housed, and if they were lucky, buried at the end of it all. Prior to WWII, especially in Britain, renting was common across all social classes. Many middle and even some upper-middle class families rented private homes, especially in urban areas. Around 80-85% of the working class rented their homes. About 30-40% of middle-class households also rented. Renting was often through private landlords rather than municipal housing, which was less common before the expansion of council housing after WWII. It seems all the pictures we had of slums have disappeared from the minds of the "we did it ourselves" crew.
So pre WWII a large proportion of the population lived in substandard, overcrowded, privately rented housing. We hav been returning to this. The interwar period saw some council housing initiatives, but these were limited.
After the war the government launched a massive public housing program, known as council housing or municipal housing. The Housing Act of 1949 (also called the "Steel Act") aimed to provide affordable homes, with a target of constructing hundreds of thousands of new houses annually. The most iconic development was the construction of new towns (e.g., Stevenage, Harlow) to decongest cities.
By the 1960s, over 30% of the population lived in council housing, a dramatic increase from pre-war levels. The focus was on replacing slum housing, reducing overcrowding, and improving living standards.
Pre war education was less accessible, with significant disparities based on class and region. The 1918 Education Act had begun expanding compulsory schooling but gaps remained. Post war the Education Act of 1944 (also known as the Butler Act) significantly reformed education. It raised the school leaving age from 14 to 15 (later increased further), introduced free secondary education for all children, established a tripartite system: grammar schools, secondary moderns, and technical schools.
Post war the National Health Service (NHS) was established in 1948, providing free healthcare to all. The welfare state was expanded to include social security, unemployment benefits, and pension schemes. The aim was to reduce poverty, improve health, and promote social mobility.
All these gave the over 50s better opportunities yhan had been previously available.. All these areas have been slowly receeding since circa 1970. Sometimes this has been deliberate, sometimes accidental but those under 50 simply haven't had the same support or massive changes to their potential lives that those over 50 had.