Exactly - the second amendment came from several circumstances. (Canadian, so I really don’t care about current gun debate down there).
The original settlers in the somewhat wild east needed guns to hunt, and the locals whom they were stealing the land from tended to take offense quite regularly. (I’m sure we can dredge up multiple instances of cultural clashes leading to outright confrontation). Between the need for isolated outposts and farms to defend themselves, the need for hunting, and the recently concluded evidence of hostile acts by the government of the day, they felt it necessary to say that locals should keep their own guns. Wild west was a result of the culture, not a cause of it.
It’s interesting to speculate why the same did not happen for Canada or Australia as settlers spread west, but that’s an exercise for another day, another thread.
generally, customs evolve to formalize how to behave to avoid clashes and misunderstandings. Often this includes an equitable distribution of scarcity - lining up, not taking the last food, politely offering more or declining extra, shaking hands, polite greetings to set the tone of an encounter, etc. You are always going to have differences where the custom applies in one culture because the situation historically applied, but not to another culture.
Laws and customs have also emerged to handle new situations. What was applicable to ox-drawn carts, for example, doesn’t translate to much faster automobiles.
A classic culture clash, which I first heard in the 1970’s and has been repeated quite often, regards “personal space”. Someone who worked in the British Embassy in Saudi Arabia, IIRC, mentioned that Europeans tend to converse with about 3 feet separation. Arabs, OTOH, converse with a foot or so separation, which makes the British uncomfortable. So at formal parties, the British person is talking with the Saudi. The Saudi moves in closer to converse, the Brit backs up, and so on until you have these very uncomfortable Brits backed up against the wall. where they can’t back up any further, with a Saudi sticking his face in their personal space.