The average house price in 1974 was under £9,000, the average manual worker’s wage was just under £2,000 per year according to Hansard (Average wage 1974). In London the average property was just under £11,000 then. So you could buy a house on less than 10x annual salary of one manual worker.
Current average UK house price is £282,000 and £698,944 in London. Average UK salary is £34,000 and £44,000 in London. So house prices are between 8 and 15 times annual salary, depending on where you live.
Some people bought their forever home 50 years ago and have never moved. Their ‘wealth’ is inaccessible to them until they sell. Unless you are demanding compulsory sales of OAPs homes, you have to accept that the increase in property value is due to other people wanting to live in popular areas, not the people who already own the property, but those pushing house prices up by outbidding others for the limited asset.
So yes, if a manual worker bought their home in London in the 1960s it could well be worth £1m+ and yet as a pensioner in their 80s or 90s they might be on the state pension only as workplace pensions weren’t common for manual workers then.
Still, the withdrawal of the winter fuel allowance will probably cull a lot of those OAPs, won’t it?