Putting more of each pay packet into super would widen the gap between high earners and low earners; between men and women.
The increase will come at the expense of wages, and in the view of two inquiries - a decade apart - is something we don't need.
Most retired renters are in poverty, very few home owners are.
More older Australians are carrying housing debt later in life, or not owning homes at all, but lack suitable alternatives to the family home. The result is lower incomes in retirement.
All that would be needed is to adjust retiree tax scales and tax their super fund earnings at their marginal rate.
Super is inefficient, costly and directs money where it isn't needed. There's a way out.
An examination of 80,000 enterprise bargaining agreements finds that on average 80% of each increase in compulsory super has been at the expense of wages.
Josh Frydenberg's review of the retirement income system will have to consider the growing hole caused by our decisions to delay buying homes for longer and longer.