It is common practice in Australia. Recent legislation has made these fees more reasonable, but they are still a surprise for many.
On the other hand, it is surprise for many Aussies to find that when they travel elsewhere, there are no such fees.
Just like many things in life, it really does pay to research the practices of foreign lands before travelling there (or not to research and just go with the flow).
I am reminded of the fits thrown by UK relatives when I was little because their hotel in the States had the temerity to charge for breakfast. Something simply "not done".