The KiwiSaver framework should be used to help set up a way for people to save an "emergency fund" so fewer have to resort to borrowing from high-cost lenders, says the government's money advice arm.
David Boyle, group manager education at the Commission for Financial Capability, told attendees at its biennial summit that other countries were looking at how to help people save for a rainy day and New Zealand should do so too.
The United States as of the end of 2016 had US$25 trillion ($35.5t) in savings of which $15t was in superannuation, but for every dollar invested by the under 45s, 40c leaked out.
A US Federal Reserve wealth and wellbeing survey found nearly half of people could only come up with US$400 if they borrowed it or sold something.
The situation was similar in New Zealand where recent research by the commission found 44 per cent of Kiwis only had enough saved to survive for one month or less if they lost their income.