My experience was quite different in terms of private hire with a fresh PPL.
I with a bit under 60 hrs I went to Redcliffe and did a hour dual in a 172 (hadn't flown one prior) and they were happy for me to hire it after that.
On my return to Adelaide I did 3 circuits in a 172 with one of the flying schools at PF and was then good to go.
Admittedly that was 10yrs ago so I'm not sure if the landscape has changed since then...