Cynical answer: Not the kind of hellhole dystopia that has schoolkids shooting up schools twice a week.
Or that his possession and use of this gun might somehow serve as a sort of "gateway drug" to Harder Weapons that he would then use to the same end?
Neither one appears to have actually happened. In fact, I've never known a single person who has been involved in a school shooting, or heard of one happening here at all, ever. It just doesn't happen, regardless of whatever is supposedly happening on the glowing box in the corner of everyone's living room that's always portraying doom and danger everywhere.
Indeed, I don't recall a single one of my paintball playing friends (who all nonchalantly used illegal in Australia and super dangerous semi-automatic paintball guns against each other) who later went on to be involved in any kind of gun related incident.
I'm sure you've got some kind of excellent response prepared however, so we will now hear the details of how wrong I am and how Paintball Guns Are In Fact Really Dangerous Because Reasons And the Australian Government Nannies Are Right.
"In NSW, paintball is classified as a "prohibited firearm" under the Firearms Act 1996. However, it can still be legally played under strict licensing conditions. Unlike in some states where it is more loosely regulated, players and operators in NSW must comply with a range of legal requirements to ensure safety and legality."
These rules have changed, I think back before COVID they reclassified them as sporting equipment instead of firearms, but still brought in a whole bunch of licensing rules and requirements similar to gun ownership.
You can't just walk into KMart and walk out with a paintball gun here. |Or paintball markers.