They won't if they fall for the 'we can't afford it' line, continue to refrain from voting, and get the pension phased out. The fact that the pension is a ponzi scheme is not the fault of pensioners, who just did as they were asked when they were working and able to contribute. Blame governments for making a hash of things, not the people who have contributed for decades.
The same is true of the NHS and education, so the people you would see struggle in their old age are the ones whose tax/NI paid for you to be born, your childhood vaccinations and any other healthcare you needed before you started paying your way, your education and any other public services that you used in that period. I vote for you to sod off too.