I've mentioned this before. Like Risewild said, they most likely have access to historical archives, so it shouldn't really be that strange for them to at least be aware of what 'communism' is. In this day and age, we have communist sympathizers, and they appear here and there even though they obviously only know about the ideology through historical and textbook data. So is it strange for some vault dwellers who were born in an isolated environment for generations learn about this old-world value of communism, try to make sense of it and what it can do for the problem they're having in the vault, and emerged to be a communist sympathizer? Perhaps, but the chance of it alluding to emulation of Pre-War America is far greater in this context considering the whole setting is Post-Nuclear America. Again, the Vault 15 Dwellers who established Shady Sands are obviously Americans even though they are of different racial root with Aradesh and Tandi being part-India. And in the end they went with 'democracy', because where else do they learn of such ideology other than them being the descendant of USA citizens and learned it from their parents who also learned it from their parents before them? And this is further reinforced by Mr. House who, when asked by the Courier if he'd rule New Vegas as some kind of dictator, he corrected that he preferred to be called an 'autocrat', which would ensure his position to not impede progress, and if the Courier wants to see the fate of democracies, "look out the windows". While this might not makes sense because you'll most likely noticed the NCR out the windows sight, Mr. House actually referred to the state the world was left in by democracies, i.e old-world values of Pre-War America is what lead to the Great War in the first place. That sucks, IMO. Why play RPGs like they're adventure games when you can actually play the game of role-playing, like it's meant to be played? You basically make a fuzz about one of the prominent features of a radically different genre than your most preferred choice. That doesn't make any sense. Because if we go by your definition of what a post-apocalypse world is, then that means the concept of bartering, trades, rebuilding, etc etc should just go out of the window. So, the world is reset back to the Stone Age, but literally. What you're saying is that for some reason, even if there happens to be survivors from the Pre-War era, it should still means jackshit if they pass down their knowledge to their descendant, that those knowledge should just cease to exist, vaporized like it was never there just because the world was blown to kingdom come by a nuclear apocalypse. It might make for an interesting story, but this is Fallout: New Vegas, basically the real Fallout 3 that came after Fallout 2, and even at that point of the sequel to Fallout 1, the world has mostly been developed to the point that it was no longer a true post-apocalypse, but post-post-apocalypse. If the characters of Fallout shouldn't grasp any of the pre-War ideologies and definitions at all, then the NCR is your biggest beef yet because they straight up in-your-face "old-world values of democracy and the rule of law". Why? New Vegas isn't Fallout 3. The characters of NV aren't literal retards who would sit with their thumbs up their asses for 200 years not doing any sort of meaningful rebuilding and progression of civilization. Not to mention Joshua Graham is a New Canaanites and had an encounter with Caesar when he was still Edward Sallow of the Followers of the Apocalypse, along with another member of that group, so it's obvious Graham is a learned man. Again, you're making a fuzz of things that really aren't that much confusing. Is it really that strange for Christine, a former member of the Brotherhood of Steel, who had a firm root in their past identities as part of a nation once known as the United States of America, to be at least aware of what Little Yangtze really means? Again, it could've been that she noticed this tiny detail in a passing glance, either from a medical log or something like that, and gained the knowledge that the patients experimented upon in this internment camp are identified as 'Chinese-Americans' by the scientists of the Big MT. It's simple, really. It's been over 200 years after the Great War, the world is no longer in a state of true post-apocalypse, it's more like post-post-post-apocalypse, so not only the need to struggle with survival and rebuilding not as much as only a few years after the Great War, there's a lot more room to enjoy things such as education and stuff. Or in case of Fallout, more and more people came to enjoy them instead of only a select few. And because of that, I think it's really not that strange for current generation characters such as Christine Royce, Veronica, Joshua Graham, and most of all Caesar/Edward Sallow to have this great intellect to memorize historical details such as who Chinese-Americans are, deducing that Zion was a spot for child scout trips, etc etc. Oh, I just remembered why it's so silly of you to make a fuzz of Veronica and Christine knowing who Chinese and Chinese-Americans are, considering San Francisco is a big ass settlement just west of the NCR, so it shouldn't be impossible for the inhabitants to visit/migrate to NCR and vice-versa, and their existence being learned about by even an average wastelander. Hell, there are even Chinese characters to encounter in New Vegas, such as James Hsu. And yeah, I'm also dumb to not immediately remember San Francisco earlier, so now we literally wasted a page arguing about New Vegas characters's knowledge of the Chinese. Also, I find it even more strange that you're okay with Fallout 1, but completely make a fuzz about New Vegas. Both are role-playing games worth their salt, both are full of opportunities to elaborate further on your character's background and identity as you play the game of role-playing, so simply by that virtue even Fallout 1 should've violated your preference of "characters having actual personality and history of their own." In Fallout 1 you can decide whether or not you want to be a nice-guy who converse with people kindly, an average person who asked questions and replies in a neutral manner, or an asshole who decide to let his mouth run afoul and piss off every single NPCs he/she encountered. Maybe because there isn't that much example of Vault Dwellers showing off his big brains like the Courier can, but, again, this is the beauty of role-playing games. Dialogue options doesn't really matter in the grand scheme of things UNTIL they're actually chosen and the characters actually say it. Making fuzz of it is like trying to judge people based on what they're actually thinking even though they haven't say it or act upon it.