What has been allowed is bizarre - like the protection that the train station has to allow it to charge access fees that make it better for 2+ passengers to take a taxi - also , iirc, the limiting of bus services to the airport to limit competition

Even if in private ownership, the fees allowed to be charged for items such as passenger arrivals/departues and parking fees should be regulated

It isn't like a shopping centre where there is competition - if a shopping centre suddenly decided to start charging $10 for 30 mins parking, people can go elsewhere - at an airport, not many options

It is wonderfully amusing that Qantas is whinging about price gouging whilst it does the same to its frequent flyer members that dare to redeem for flights