The domestic call-outs are typically first aid calls. In trying to justify their existence, ARFF became de-facto paramedics.
Not these days. They won't come unless the incident is life-threatening, and an ambulance has already been called.
Major airports such as but not limited to Brisbane, Melbourne and Sydney should have an ambulance service located at the airport, funded by the airport.
Why? I haven't seen too many Ambulance stations at major train stations or shopping centres. I don't recall when the airlines were the major lease holders and ran their own terminals that they had Ambo stations in them? Maybe the Airlines should pay for the Ambos since they're already paying for the Firies. It's their passengers after all.
It doesn't matter if the airlines or the airports have to provide ARFF. The passengers will ultimately be the ones paying, just as they do now.