It's not just the pension system. Stock market and all other investments are still a claim on future production that has to be run by someone (i.e. your kids or

It's not just the pension system. Stock market and all other investments are still a claim on future production that has to be run by someone (i.e. your kids or other people's kids). So if there are no children, you will have to work until you die (unless all work can be done by AI at some point in the future).