I wouldn't suggest that players who want that should choose the mysterious stranger origin.
Like combat. If TES didn't have action combat, thise games would be amazing (imagine Skyrim with VATS, and unlimited action points).
However, BioWare is better at writing NPCs and creating believable worlds. The seamless open worlds that BethSoft makes have significant problems related to scale.
Fair enough, if it was just an additional origin choice that would work. It could make certain dialogues with the party difficult to write for but probably no more than any other origin.
Oh man Your Skyrim idea sounds fantastic, especially if like Fallout they allowed the targeting of specific body areas. Oh man, it would also give the stamina bar a reason for existing, that would manage how many actions you could take. Damn, I wish that was what they did.
Your point on scale is an understatement. I have trouble even playing Skyrim without ranting(usually to myself as everyone I know is tired of hearing about it) about how incredibly easy it would be to fix those issues. I also really don't understand why it isn't important to Bethesda, but it must not be as it's been an issue in every one of their games.