I know this can go downhill fast so hoping that this can remain mild so that I can advise a newish shooter that asked me some questions. He came to me asking about getting a 1911 as his SD gun. He's a smallish guy with smaller hands. He served in the military in a non combat role so the extent of his shooting skills, IDK. I advised him that he may consider a 9mm since the grip diameter is a bit smaller and those models with backstrap or side panels options they can be adjusted for hand size. He prefers a .45 because it has that big barrel. Thoughts to enlighten him?