For a lot of people, it goes beyond the fact they're unprepared and you raise an issue many people have, namely the critters. I don't like snakes and spiders, they freak me out, and crocodiles...well, they re calculated killers. There's a way to coexist with them, but the thought of those things, and others, keeps so many people away.
We have a lot of deadly shit down here so some respect must be shown, the wilderness or amazing, but it has to be respected, understood and worked around.