August 13 is International Left Handers’ Day and Rhiannon poked a corner of the Hive Mind and asked if it’d consider taking a look at handedness as a social justice issue. They’re doing a series of postings on the topic, which you should check out.
I lived for 13 years with a left handed person, and I recall it occasionally was a problem, but I admit I never thought about it much. I remember mostly complaints about finding decent scissors – stuff like that, so I replied to Rhiannon: “I’ve mostly worked in the software industry and I’d always thought that computing wasn’t so bad…”