I like your modular approach.

I would be interested in the contents of your larger kits.

Everyone will choose kit they feel comfortable with but there are some general guidelines I try to approach this preparedness stuff from.

1) Is it likely to happen? There is a percentage probability beyond which I consider "It won't happen".

2) How bad could it be? I reconsider all the things that I don't think I need to prepare for in light of rule #1 and determine if the consequences of not preparing are severe enough that I might want to prepare anyway even though the likelyhood is low.

I am certain that you probably carry a good deal of wilderness gear for long flights where you pilot over rough terrain. This takes into consideration that you might be in trouble and have to suffer an off-airport landing in unpredictable locations. In your urban EDC you don't seem to be applying the same level of consideration. If you find yourself in an unfamiliar city (likely since you travel a fair amount) far from your residence and on-foot (again stated as likely) and social disruption breaks out that is not targeted at you (unpredictable but generally likely in this decade / world) you might find that you have no cell phone signal (system swamped) and you would be unprepared for conflict with a mob even with a handgun so you would have to double or treble your walking to return to your residence or "goto ground" to allow the trouble to pass. In either of these scenarios a bit more gear might be useful.

Consider the urban scenario possibilities that are objectively as likely as off-airport landings. Determine if your EDC truely will be adequate for these scenarios. If there are some unlikely scenarios which would be disasterous if you faced them is it worth carrying a bit more just-in-case?

For some, the urban jungle represents a more threatening environment than the wilderness. For some the urban jungle is familiar and presents a comfortable environment where they don't feel threatened. I would suggest that familiarity breeds contempt of the true level of threat. Just because Bert has walked in the woods his entire 40 years with nothing than his sheath knife and his wits and perhaps a book of matches if it is cold doesn't mean he won't get dead tomorrow from a case of giardia and wouldn't be better off with a bottle of iodine tablets added to his left front pocket. Just because John has lived in the city for his entire 40 years, and travelled all over the world without being caught in a riot doesn't mean that it won't happen to him tomorrow and John might be better off with a garbage bag stuck in a pocket to keep warm while he hides in a dumpster waiting for the street to quiet down so he can walk home.

I don't really need to prepare for the things that happen to me every day since I live in a society of individuals to whom those things also happen there is a plentiful supply of stuff to help me deal. There is anicin and bandaids in the office FAK and down the street at the 7/11. What I prepare for are those things that others don't expect to happen so that I will be prepared when there isn't enough to go-around. As BeachDoc pointed out, he had his n95 masks in stock before the run which depleted supplies because he was prepared for an outbreak of the plague even though everyone else thought "It can't happen to us.".