We have tax advantaged retirement accounts, which have weird contribution rules that assumed companies would replace spending they were doing on pensions with c

We have tax advantaged retirement accounts, which have weird contribution rules that assumed companies would replace spending they were doing on pensions with contributions to these accounts (spoiler alert: didn't happen) that keep contributions limited to pretty low levels unless your employer kicks in huge amounts, which almost none do (that is, there are limits on what you can contribute, and separate limits on what your employer can contribute, and the latter is significantly higher). Also some of them require your employer to have such a program, or else you can't participate, which further limits your max contributions if yours doesn't. Further, since individual contributions aren't mandatory, that money is freed up for zero-sum competition over things like good schools for your kids (that is, housing in good districts) so if you don't choose "defect" and spend the money instead of saving it, your family's overall worse off than it would be if everyone had to contribute. Also, a tax-advantaged savings/investment account isn't the same thing as a pension.