With the threat of active shooter incidents it just doesnt make sense to go out to the mall or into gatherings of innocents carrying anything less than a Glock 26.
I make it a rule to abide by often and carry 2 guns — this is not a back-up gun concept, it’s 2 guns — Glock 26 almost always one of them... Can always carry it with a 15 round Glock 19 mag for extra grip and oomph, and also versatility that it will take 33 rd happy sticks, and shares same mags as my Kel Tec Sub2K carbine. All of the above subcompacts I listed will take other higher capacity mags as well, except for Smith and Wesson maybe?
These subcompacts can do amazing accuracy and at distance!
Walking, meandering in crowded environments, especially where weapons are forbidden, I carry a blackjack, blade in addition to handgun. It gives you other options. Silence can be golden. I do not trust mace, stun guns, ASP batons, or security whistles.
For a last resort in nonpermissive environments smith and wesson j frame snubbie, appendix inside waist band AIWB. I get self-conscious with Glock 26 because of slight printing inside waist band. Although small of back works well with the way my back arches but comfort level while seated is not optimum.
There are belly band holsters by Pistolwear.com which are great running/jogging yet take time to access, and the Glock with no safety is not optimum for digging your hand inside a tight pouch when pressure is on in stressful situation! I carry a double action (Sig Sauer P228) in that regard. Unless you carry the Glock without a round in the chamber, in which case when the SHTF you have to have both hands free to work the slide. Precious seconds.
There are also holster wraps, band holster (like medical guaze) though I find itchy and uncomfy and less fast access. After researching how much unreliability there is in mouse guns, tiny pocket guns...when super concealment is ideal.. besides the j frame thought of purchasing another j frame or perhaps Bersa Thunder...loaded with +P Buffalo Bore flat nose hard cast rounds. For freedom of movement, quick access, deep concealment (especially in hot weather) in a non-permissive environment with throngs of people, things to think about. Mostly it’s about wearing looser clothes.
Just some rambling thoughts on everyday carry... ;)