In real life it may not be very effective for most people, but as the old saying goes, practice makes perfect. That's not to say it would be, but with practice, it can be done.
And, Skyrim wasn't very friendly to lefties, despite the dual wielding mechanic. If I wanted to use a one handed weapon and a shield, guess which way I'm going to be fighting. If I want to use a bow and arrow, guess which way I'm going to be doing it. I'll give you a hint, it won't be as a southpaw, that's for sure.
And this coming from someone who's been a lefty for all his 45 years on the planet.
Has any game EVER done this? I feel for the Lefties, but does this seriously effect gameplay in any respect at all?
I don't mind this but I'm more interested in having duel-wielding guns honestly... I think that would be cool.
I'd love the option to be left-handed in-game, but I don't expect that it'll happen.