Occasionally I lurk on some of the sites that do EOTWAWKI because they are unrealistic in a rather amusing way (also usually politically tinged). Established order will end suddenly due to some unspecified disaster, and they because they stocked lots of ammo and live in a highly fortified location, will be top dogs.
When you look at history, that is not usually how it happens. Societies do flourish and decline, mostly on a fairly gradual scale (think the Maya for an example close at hand) and populations adjust and carry on. Not that you could not have a massive disaster (asteroid impact, anyone?) but the odds are long. You are probably going to do better to prepare for an earthquake, tornado, or hurricane - events far more likely.
I have spent a lot of time in the outdoors, both because of my personal interests and also because of my work in national parks. I am also a firearms owner. Unless you are engaged specifically in hunting, a firearm is just useless weight, about 100 times less useful than a full quart canteen.
I do keep weapons handy. I did have one experience many years ago where I was really glad I had my 357 in hand. Many of us here are comfortable with firearms, but they don't rule our lives. A gun is a tool, like an ax, hammer, or shovel. They are also fun, and the eight year old that lives inside me likes to get out and make noise once in awhile...
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Geezer in Chief