Why would they want to? I am honestly curious as to why someone needs to bring a gun to work.
Before I address this, let me ask for a bit of clarification: is it the type of weapon involved that you find puzzling, or are you puzzled about carrying any kind of a weapon at all? Put it another way: if you found out that someone routinely carried a canister of pepper spray with them everywhere they went, including to work, would you still be confused?
I can understand the need for self-protection in certain circumstances. I am not opposed to all weapons and I can even see some situations where having a gun makes sense. But unless someone is working in a pretty dangerous job, like prison guard, I can't see the need for deadly force in a workplace. Every once in a while there is a shooting at a college and people start talking about allowing guns on my campus. The day students are allowed to pack in my classroom is the day I resign.
When I worked in some dangerous housing projects and had night shifts, I decided I needed some personal protection. I would not carry pepper spray because it is too unpredictable--I know that for a fact because I was once sprayed with it, and it did not do what the person wanted, luckily for me.
Even though there were shootings and gang battles going on, I decided not to carry a gun. For one thing, I would not have wanted to live with killing anyone, and having a gun would increase that possibility. For another thing, my gun could be taken away and used to kill me
. And finally, I would not want to have a gun unless I was going to spend a lot of time getting good at using it. I was not interested in becoming that good.
So, I took martial arts lessons and routinely carried a knife
, never a gun, in my purse. A knife could only be used if someone was really close to me and I was in certain danger. It would be hard to kill someone across the street by accident with a knife, as opposed to a gun. And if the person got it away from me, I still might be able to survive. If a little kid got into my purse and got my knife, there is only so much damage they could do. Not so much with a gun. Finally, and maybe most importantly, I think not having a gun made me cautious, circumspect and more willing to find non-violent ways out of conflicts. (I never had to use my knife.)
Obviously, everyone has to make up their own mind as to how much danger they are in and how to protect themselves from it. But the idea of having loaded guns in a recreational workplace like an amusement park, with crowds and children all over the place, seems really unwise to me.