I have two young sons. They tend to do stupid things. They have a better chance of getting hurt and needing first aid than my chance of needing a spare magazine for my concealed carry pistol of choice. Therefore, do I carry bandaids and other such things with me pretty much all the time?
Because of my lifestyle, the odds of me needing to use a Bandaid are pretty good. The odds of me getting into a gunfight and needing to use a spare mag are incredibly small. The stakes, though… the stakes are incredibly mortal.