It’s been a few months since I carried a pocket .380 as my primary defensive firearm. The fact is, though, that even when I carried a tiny little gun like my LCP2, I never feel under-gunned. Was it the optimal self-defense gun? Of course not, there is no such thing… a pistol, ANY pistol is a compromise, the LCP2 (and guns like it) compromise firepower in favor of portability and concealability. I know what I can do and can’t do with my LCP2, and I live within those limits. A Glock 19 is not an überwäffen: It also has limitations, and if you don’t know what they are, you’re in worse shape than I am with my pocket .380.
If you carry a pocket gun, and you haven’t put it (and yourself) to the test, do so, otherwise you’re relying on hope, not knowledge.