Unsurprising, to me, at least.
As a LE firearms instructor I've seen up & down cycles of actively employed cops willing to carry off-duty weapons over the years.
I remember attending some training seminar and hearing of some statistic indicating that no more than 20% of active American cops carried weapons off-duty.
So, it's hardly surprising that private citizens, who don't have to be concerned about invoking peace officer status and taking action in an off-duty situation, might be inclined to carry concealed firearms even less frequently than cops.
FWIW, during the approx 10 years that I occasionally helped teach classes to private citizens who wanted to get CCW licenses, or were looking to renew them, I randomly asked folks about their practices and desires when it came to carrying a firearm with a license.
It was very unusual to find someone who claimed to carry all the time on an existing license, or who felt they'd want to carry all time on a new license. Most said they wanted the option to do so when they felt it appropriate, or felt like doing so.
You wouldn't believe the number of folks who didn't give much, if any, thought to their holsters, either, and settled for some 1-size-fits-all sort of holster which they'd seen on some bargain table, somewhere. (As if this is much different from some cops in their selection of off-duty weapon carry methods.

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