Tbh honest they may as well just call fallout elder scrolls then the dinosaurs would be annoyed.
I actually like the "pick a race" aspect of Elder Scrolls and would love to have it in Fallout. (Check out Fallout 4 Speculations & Suggestions thread in Series forum.)
But it wouldn't work for Vegas though, it needs to be designed with multiple races in mind from the start since a lot of dialogue would be different.