There is a Mountain of Evidence a Handler can carry with them not exclusive to what you mentioned , Sadly The Biggest Barrier Many People who Travel in Australia have is lack of education of Tourism Operators and Industry . This would be the biggest hurdle for many and then secondly finding a business that values inclusive and what that looks like.. again sadly many are in the dark what this looks like and it is no doubt due to the limited amount of exposure many of them have had to assistance animals . Sadly the Community remains outside the tent when it comes to inclusion .