More fun with numbers here. Not commenting on the Australian plan, but what strikes me as an apples-to-oranges comparison.
In the lead paragraph that Ted quotes above, we have the statement that over 90% of Australians put money into the system. That sounds to me like a low number for a system that is mandatory.
The article then goes on to say that in a 2011 EBRI study (the article itself is from two years ago), 40% of working Americans participated in an employer
retirement plan. That looks very low compared with Australia (which is a point of the article), until one looks at what this 40% figure represents.
According to the EBRI paper, 75.2 million workers worked for an employer that provided a
retirement plan (defined benefit, i.e. traditional pension, and/or defined contribution, like a 401k plan). Of these, 61.0 or over 80% participated. Remember too, that just because an employer offers a plan doesn't mean that all employees are qualified to participate. So the actual participation percentage
of those eligible to participate is higher still. Getting pretty close to Australia's figures - and that's on a volunteer basis.
If one wants to find fault in the low participation rate, blame it on the fact that (according to EBRI) only 48.9% of workers even worked for an employer offering a
retirement plan (whether or not they qualified to participate). If there's something to fix, it would seem to be getting more employers to offer
retirement plans, not raising employees' interest in participating.
Here's the EBRI
summary and
paper.