If you are one of those ultralight types, cutting the handle off your toothbrush, etc., then the LCP is the way to go. When I go light I carry my P32 and feel just fine about it. Quick to access in the zipper pouch on my pack's belt and is absolutely invisible. In (black) bear country I might step up to an ultralight snub with hardcast .38s.
Solo, I feel justified in carrying less gun. Herding the kids, I step up to a 9mm Shield, or 3" SP101 in bear country, but then with the kids I am covering much less ground.