For all intents and purposes, Australia is a gun free zone and I understand that there are still citizens that own guns there but what I was trying to convey was that it is highly unlikely that an armed citizen will ever be present in a situation like this to intervene-that an attacker can be quite confident that he will have the only firearm in the building when he walks in with his and starts shooting people. A movie theater or a school is considered a gun free zone in America because rules have been put into place which greatly reduce the odds of a law abiding gun carrying citizen being present when a psycho walks in and takes over. It’s a generalization in other words.
As a generalisation, OK - you’re right, it’s not likely somebody will encounter an armed civilian very often. But the trouble is, a lot of people making statements our gun laws that aren’t particularly accurate is a large part of the reason we have so many problems. Far more people could get a licence - but they don’t because they’ve been convinced it’s so much harder than it is.