FWIW I’d be all for raising the pension age. Given the health system, life expectancy etc - it’s the easiest way to make a big dint in welfare spend. Re-jig the system to make it far more attractive for people to step down to part time, basically semi-retire.
It’s easy sport for conservatives in particular to drop the unemployment benefit by a few dollars, or make it harder to sign up - but it’s such a tiny fraction of the total welfare spend it’s really never going to make any difference to the budget.
This of course is never going to happen, would be hugely unpopular amongst the baby boomers.