Pfffft...

When I was a contractor I had to pay my own super.
When I was salaried, my super was part of the "package".
Now that I'm a casual on an hourly rate, my super is simply part of my hourly rate that's withheld by employer so on paper it looks like its being paid into a fund.

When I leave I'm going to have contact FairWork Australia to recover my super component.