User blog comment:Nanosoldier/Anyone want any major DLCs?/@comment-4237253-20120316043104/@comment-1786741-20120316210820

Its just common sense. They don't provide the main characters background so you can create your own character. You will see this in just about any other Bethesda RPG. The only exceptions being Fallout 3 and New Vegas, but even then its very limited.