Like some others here, I am of the opinion that, in terms of defensive effectiveness, the micro .380s are a hell of a lot closer to a full size service weapon than they are to "nothing at all".
Even better, in terms of carry comfort, the micro .380s are a lot closer to nothing at all, than to a full size duty weapon. From a cost to benefit analysis viewpoint, they make a lot of sense; to the point that there is no real excuse for carrying nothing if legally permitted to carry at all.
Yeah, I'd prefer my commander if I knew trouble was coming, but not as much as I'd prefer a pump 12, etc. etc..
For my very low risk lifestyle, I'm ok with my Sig P238 and a few spare mags stuffed with that Fiocchi xtp round. That little sig, with its short trigger and nightsights, has replaced my trusty 1976 36-1, even though the remington 158 +P from the 3 inch tube is a much better round. A .380 is not ideal, but it is an ideal edc, IMHO.
Other opinions are welcome to vary; each person has to weigh the issues for themselves, of course.