I agree with Cimbu
In an earlier life when I worked for the then CAA in a safety promotion role and when the then new AMATS system was being implemented everyone said that there would be mid-air collisions and metal would rain down. It didn't happen because pilots know how to use the system that they have to fly in. They adapt.
I undertook an investigation of mid-air collisions - over 10 years there was only a total of 11. Many caused by pilot misjudgment or failure to follow procedures.
Most of these took place in the circuit as one would expect - but most also at uncontrolled airports.
There have been some specatular mid-airs in controlled airspace such as Coolangatta and Bankstown - but they are very rare.
We certainly don't need politicians to suddenly decide that all ab-intio training should take place in OCTA.
I benefitted from learning to fly in Canberra at a controlled aerodrome and leaning as a student o mix it with RPT and military aircraft.
Barkly