Captain Nomad With class E airspace everyone is playing by the same rules when IMC exists. All aircraft are separated by ATC.
When VMC exists sensible operators use the same procedures as they would with our existing class G airspace that you love so much.
There is also an additional safety advantage of mandatory transponder in Aussie class E.
But continue to resist change until we have an accident. That's what has happened with our other unique rules!
Dick,
In Australia Class E requires a transponder. In the USA it doesn't*. Expanding Class E as you propose will increase the cost to industry if they do not otherwise operate in airspace that requires a transponder. Do you have data to support the safety case that you are willing to share?
* The US requirements are sumarised here:
Transponder Requirements - AOPA