Retirement was never a thing before the 50s or so. That’s why even at the time they had set it to roughly the average total lifespan. It was supposed to be a coinflip to begin with. And honestly one of the shared facets of societies where people routinely live to 100 is actually the lack of a concept of retirement. And part of that is that work isn’t something you either toil at physically for extended periods or being trapped behind a desk. It’s physical but not to excess and they have regular breaks at least weekly and plenty of holidays. You’re not supposed to grind grind grind for years then just stop. You’re supposed to have work that’s accessible and fulfilling that you can maybe slow down a little on with age but not just cut off at some point.