One big problem for lefties is that you're always pushing the pen into the paper. Pens, or pencils work a lot smoother if they're pulled across the page — as right-handers do. Obama’s twisted-hand grip is one way to partially overcome that problem. Awkward looking as it is, it allows a leftie to pull, rather than push, the pen across the page.
I learned to write cursive with fountain pens — where the big problem was not smearing the fresh ink all over the page. Also, fountain pens are much worse than ball points; to push across the page.
Some lefties go so far as to write from the bottom-right of the page, up to the top left of the page. They then rotate the page, to have the text facing the usual way. Of course, this requires that you write upside-down and backwards.
Aww jeez, I just wanted to poke fun at the guy.
My wife is a south paw, but she’s as right-wing as they come.
I empathize with the hand-writing trouble y’all go through. And with all the other stuff left handers have to put up with in this right-handed world.
I still can’t cut paper with my wife’s left-handed scissors.