We're going to hell in a handcart!
Most people can't afford to contribute the sort of money that would be required, to provide a comfortable entirely self sufficient living, to a private pension. I have two older friends who were colleagues in health care, and paid for decades into their 'gold standard' NHS pension to retire early (at 55). Both have had to return to their clinical roles.
Those of us with decent private pensions will become a new gen of oldies with the 'broadest shoulders' and get fuck all. We'll probably be shelling most of it out on health care, whilst those with no private pension will still get free health care.