Lefties who smudge what they write may prefer right-to-left languages like this one used in Qom & Tabriz
[DOC] [TLE] Things right-handers do to annoy left-handers | Anything Left-Handed [PAR] Left handers do a lot of things differently to right handers with a majority of right-
handed ... allowed to type, my teacher can never read the writing because it ends 
up all smudged.