There's usually a reason that many LE agencies who regulate caliber of secondary and off-duty weapons have set the lowest bar at .380ACP. It's pretty much at the lowest rung of the marginally adequate ladder. Is it lethal? Of course. The .380ACP has killed a lot of people. So has .22LR, comes to that. Like many cops, I've seen the results of houses and people getting hit with .380 rounds. It still wouldn't be my choice for a primary duty caliber, but it still offers some potential value as an optional secondary/off-duty choice.
Anyway, I stopped being interested in (and carrying) a .380 back when I had an unpleasant experience with a finicky Beretta double stack .380 in the 80's. It wouldn't reliably feed Ball, even with new springs and being carefully cleaned and lubed. Then, there were all the guys and gals who often brought their little Walther .380's to the range, and it was always a coin toss whether they'd make it through a course of fire without stoppages. Since there were 9mm's that weren't that much larger than the Beretta (like the M469), I let go of the .380 and didn't pay attention to the caliber for more than 20 years.
Then, one day I decided to try a friend's LCP. He was another retired LE firearms trainer I'd known for some decades, and he was a serious shooting enthusiast. (Hadf his own mountain range, and I'd often seen him carrying at least 2 guns, if not 3 of them.) I'd seen some LCP's come through our range and they seemed pretty decent for reliability. It fit in pockets (holstered) where I couldn't put my J-frames. Handy. Turned out to be surprisingly accurate, as well as reliable with an assortment of JHP loads. I bought one from my local cop shop. I had to call Ruger to replace the takedown pin in that first LCP (it walked), and the replacement pin solved the issue. (An interim aftermarket anti-walk pin I bought to try, out of curiosity, also rotated and walked under recoil.
)
My second LCP (added a stainless slide version with the new sights and trigger geometry) just perked right along. Liked any JHP or ball I tried (made by major American ammo makers). It was just as easy to run it through qual courses-of-fire as my J's. However, once the distances moved out beyond 20yds, like to 30-50yds, the J-frames were easier to use to get hits on the paper and steel silhouettes. No biggie, since I didn't plan to carry the LCP's in anticipation of "engaging threats" at those longer (handgun) ranges, anyway.
So, while I'm not particularly enthused about the caliber, I do like how the diminutive size of the LCP gives me some options for carry when short and tight pockets rule out my J-frames.
Folks have a LOT of options nowadays that weren't available to us a few decades ago. Not a bad thing.