On the other side of the fence, we have to wonder what kind of people you keep around, where it seems like a normal idea for everyone to possess a tool that has the only purpose of killing and maiming people (i.e. handguns).
As you are in Australia, where handguns are almost completely banned, I understand why you have that view.
Target shooting is extremely popular in the US. My brother is a handgun enthusiast -- that is, he collects and trades handguns. I have gone shooting with him many times. In my view, handguns are both easier and funner to shoot than rifles.
I know many people who own and regularly shoot handguns.
Target shooting is popular here too, every small city will likely have a pistol club somewhere.
New members must keep their handguns at the club, while long-time owners can have a gun-safe in their own home. The situation still stands though -- if you go around to someone's house, and their Glock is out of the safe, it's extremely creepy as hell.
Yes it's a freaking cool object that's fun to shoot targets with, but it's not a freaking toy and should be in the safe for a reason.
I'm friends with a hunter (
he largely lives off the land) who has a small collection of arms, and have had fun using them at a target range, sure. But when I go around to his house, he's a responsible gun owner so they're always disassembled (e.g. bolt removed) and locked up in a safe, with the ammo stored separately. If he just kept them lying around on the table like any old household tool, it would be weird and creepy.
It's still extremely weird to think that the majority of people would want to own one of these, or even keep it in their house, or on their person regularly, because defence.
Years ago I was friends with a coin dealer, he owns a coin store just a few blocks from where I am sitting now. We were together at an event where he brought several valuable coins, one of them in particular was one of his prized rare coins valued at around $1.5M. During the closed-door meeting he passed around about $4M worth of gold and extremely rare coins to a bunch of coin collectors, including me. He brought three of his employees to help protect his goods.
...
Since handguns are essentially banned in Australia and other countries, the coin dealer would have had other limited options to protect his wares. If long-barreled firearems were legal the four guards could have brought those, but it would have caused a bigger disruption. He could have hired police officers, and that would have been more money than bringing in his own store employees.
If the employees are registered security officers (again, having jumped through all the hoops, just more of them) then they could carry a handgun as required by their job. I assume guarding a few million dollars worth of metal counts as a genuine need.
It would be pretty rare to have your own full time security guards with the appropriate licenses though, so yes, you'd probably hire some for the event...
e.g. The guys that go around refilling ATMs with cash usually openly carry revolvers, so hand-guns do still exist.
With your coin event though, the assumption is that the 3/4 men with concealed pistols ensures that there'll be no robberies. Sure, if an unarmed robber tried it, he'd get stopped or shot... but what if 4 guys with AK's busted in and took hostages? Surely in that situation, your armed guards aren't able to stop the robbery without innocent loss of life?
In the US, it's legal to own an AK, so there's actually a decent chance of that happening, rendering your hand-guns either useless or a liability. Surely it's easier to reasonably secure an event where the chance of being out-gunned is several orders of magnitude lower?
I mean, obviously Hungary, just like every other European nation, is a perfect model for the United States, and what works for Europe (where surely there are numerous scarcely-defensible thousand km-long stretches of wilderness land border to defend) or Australia (who obviously has even more land border providing numberless smuggling routes into the country) will most certainly work for the US. Clearly, if we just made it illegal to purchase firearms here then the border to Mexico will suddenly not be an issue, rather than providing a million and one points of entry for illegal firearms to make their way into the hands of people unscrupulous enough to ignore those laws.
Australia has more coastline than any other country, the majority of it just as barren as your mexican border. We leak to oceanic smugglers like a sieve. People smuggling ("illegal immigrants") is as much of a major political issue here as it is in the US. Also, almost every single good that we buy arrives in a shipping container, and most of them go through a single massive port city. We can't scan every single container without starving the nation, so there's huge opportunities for large scale smuggling.
Due to supply and demand though, these unscrupulous people have to pay 100x the normal price for a smuggled gun... so ignoring the massive difficulties in finding yourself a smuggler who's not an undercover detective, it's at least 100x harder to get illegal guns now... so again, you mostly see them used by large organized crime groups -- the guys that are moving tons of cocaine, not your average criminals.