Just because you're in Australia doesn't mean that SS/Pension schemes aren't similar/applicable just because they are written from the perspective of a different country.
Slightly off topic but in Australia we don’t really have anything quite like US social security.
We have Superannuation (which is a tax advantaged account with withdrawal restrictions similar to a 401k or an IRA) and a means tested Age Pension that is paid from 67years to people below a set income and assets threshold with a gradual taper-off rate.
A homeowner couple with assets/investments of more than $1,012,500 AUD won’t qualify for any Age Pension, and given that I’m only 41, we hope and plan to remain ineligible for the Pension forever or at least for many decades.
However many self-funded retirees do eventually spend down their capital and qualify for some Age Pension (for any Aussies reading - the MoneySmart calculators and Noel Whittakers website are useful resources for factoring pension into your calculations) .