Same as those that wanted a .22 in the 1911 platform, I guess.
I never understood that.
I've had persons that argued that it provided a cheap training platform for the use of a full-size 1911, but in my opinion it simply trains one to "limp-wrist" a full size.
Fun, though.
But for what they want for that thing, I'll stay with my 10-22 for plinking, plus, I see no advantage in training in the use of an obsolete rifle for which one can hardly find ammo.
I am very interested in the Browning version of the .380 on the 1911 platform.
Cooper described the .380 in all versions as a "mouse gun", but then, he was an elitist that couldn't see the viability of anything in less than a caliber that started with a "4".
But I digress.
10mm starts with a 1. Just kidding, I know what you mean.