All snakes are fully protected. That means no you cannot harm them either through your fear or in situations where they appear in yards, parks or even suburban streets. Australia has an amazing and educated reptile handlers all over. They are trained and operate often as a 24/7 professional service. Still some do it for free but mots have a service fee from $60 – 150.
Snakes have evolved to be adaptable and survive even though heavily disadvantaged by the loss limbs, hearing and often a reduced eyesight.
There are around 123 venomous species of which only 25 are regarded as potentially dangerous to people.