If the people you refer to in the first paragraph did not abide by the same laws I did I would tell them where to go.
If they did I would have to hear them out and respond appropriately.
I can't say for certain who is actually legal to carry a concealed (or displayed for that matter) weapon in Australia but I am confident they are not going to deliberately shoot me.As alluded to before the only other people will be criminals and no amount of laws will affect them.......It's what they do.....the govt doesn't seem to get that...or maybe they do,it might just be the people who don't.
Anyways,owning a firearm in Australia for the purpose of protection of self and property is never going to happen,special mention is made on this in most learning material.