As a somewhat pudgy software engineer who hasn't been in so much as a scuffle since primary school, knowing that I can "use my fists" against a street hardened, violent thug does not exactly leave me feeling empowered.So you're subscribing to the idea that carrying a knife or gun is going to help? But more importantly, note this part of your quote: "hasn't been in so much as a scuffle since primary school". What, exactly, do you feel you need to defend yourself against? You want to bring sidearms into a nation to protect yourself from 'not so much as a scuffle since primary school'? The US has major problems with handguns and crime, but the genie is out of the bottle there.
The incidents of random, senseless, violent attacks against innocent bystanders by violent youths and thugs - usually without any other motive such as theft - is a bewildering common occurrence in Australia, and a well-known and widely talked about issue in contemporary Australian culture
I might be wrong here, but the 'random, senseless attacks' were a large part of NYC until the very recent efforts in making the city much safer. It's not something that is peculiar to the Australian psyche.
But yes, around nightclub districts there is a problem. Even your linked article it's talking about the heart of a nightclub district at 2:30am. But in reality street crime is no worse here than anywhere else. I think you're falling into the trap that Australians so like to fall into, claiming that the country is always going downhill and is worse than anywhere. It's like the people that claim our country is the most racist in the world. Sure, we have some problems with racism, but what countries don't? Whenever we have these discussions, there's almost never any actual comparison to contemporary countries - it's habit for us just to assume we're the worst (because like the US, we like to think we're #1, it seems :)
It's actually really hard to accurately compare crime directly between countries (excluding homicide). A punch-on between a couple of guys can end up with five charges being laid in Australia (ascending charges, one of them will stick), and is listed as 5 charges in the stats. NZ does this as well, but not many other places do. In contrast the US doesn't even bother publishing those stats, they'll generally only publish aggravated assaults, which are with either a weapon or resulting in severe injury.