The people are generally ignorant of their new world. The young folks can't read, nor do they see a use for reading. The old folks remember the before days and know secrets that could be useful. The government is operation in it's own interests, as is the military. Both are armed, but sometimes the patrols never come back. Sometimes the posts get raided and destroyed, with the spoils of war lost in the wastes, to show up later in the hads of youth ganges.
From a lore point of view, we can explore how, and why various factions emerged, how settlements came to be. From a RP point of view, if our basic mission is to either promote the development of society (good) or maintain the state of anarchy(evil) or to build your vault city, (neutral?), the qusts you embark on will change the path of history, both short term and long term. The city overseer would want to make alliances where possible, engage in political intrigue, and go to war when necessary. You would be tasked to accomplish some of these goals, and the way you decide to handle them will determine the outcome. Do you follow the overseer's orders no matter the consequences, or do you decide to take matters into your own hands? What is the overseer trying to do anyway?
How does this sound so far?
The thing is what if the Fallout developers choose 1950 to continue in a separate space time and planned it to develop slowly for this universe. What if this multiverse that fallout is set in slowed down even more because of the radiation after the Great War but was caught in the 50's. The concept of time is completely thrown out the window if this kind of thing is put into place. Consider this idea, 15 or 20 years in the Fallout Universe equal a single year in our Universe. This would make the 200 years between the Great War and Fallout 3's Time Line only 10 Earth Years and it would help us wrap our heads around the way time works in Fallout. The Nukes not only killed people but broke a hole in the space time continuum. See that wasn't so hard to solve now was it. Now there is another alternative, What if the vast majority of smart people got killed by the radiation and people had to witness their family die in front of their eyes and the trauma would be so great that it would have an impact on the way they saw the world around them. The Raiders like The Khans from Fallout 1 and 2 could have never come into existence if a Child's Mother and Father lived instead of died to pass on their knowledge of the world after the Great War. Also the vast Intellectual minds that could have been used to rebuild civilization got locked away in vaults and become science experiments for a twisted government. The fact that the DC Wasteland hasn't been built up over 200 years could be because the Mutants and Raiders and