Because we don’t want Redneck “Vigilantes” stopping stuff like this:

We need to respect the local interactions between Thugs and the Elderly. It may look like a strong arm robbery to the uninitiated tourist from Down South, but in NYC is just a routine dance in which the superior male collects its government-allowed tribute from inhabitants of the city.

The Mayor of New York City cannot allow that somebody with a concealed weapons permit from outside the state would place two slugs inside the head of that “Fee Collector” and allowing the elderly gent to keep his property.

end sarcasm/

Hat tip Michael M.