generally, the higher up the social ladder of SR, the LESS they put up with weapon, regardless of the law...
In the heart of a "AAA" Zone and you have a light pistol, no identifiable destination, AND barely look like you belong there?? expect to be the object of a survailance drone for a long while....
Now, imagine how fast they are going to be on you for a machine pistol? How are you going to explain that you need a machine pistol with your ID, and that you belong in that zone at that time of day?
The rich pay big money to make sure they are safe, and that usually means they want only those "authorized" to have guns, to, you know, actually have them here. (IE: security and police)
In the heart of a "C" Zone and you have a barely passible ID, no licence, a heavy pistol under your jacket AND the KE officer saw it? He might make an attempt to question you, he might decide that now is a good time for coffee... He's might throw down on you.
Here, a gun might be the second thing you grab before you leave to get groceries! (right behind your armored jacket). Sure, you may not need every time, but you sure feel safer with it.