I think the longer term plan in NZ is for Kiwi Saver to become compulsory as it is in many countries. In addition, the percentages contributed by employers and employees will probably increase and it will eventually become the main retirement fund for most people. I lived for many years in Singapore and Malaysia. Both countries have had similar schemes for over 30 years. They are really well run and actively managed by government departments.

I think some NZ Kiwi Saver suppliers adopt a passive or semi passive approach. I am in Simplicity who use Vanguard funds, are non profit and have very low fees. I have been very impressed with them so far.