I and my wife are both lefties. We are both artistic. Many great artists like daVinci were. That is because we can use both sides of our brains to think. Google it if you don't believe it. I don't see why everyone isn't left handed since that is true,and enables the person to be much more artistic.
I was not aware of this fact till last year,when a doctor told me. My wife thought it was B.S.,till she Googled it.
BTW,I bought a left handed dial caliper from Grizzly. It is handy when measuring things right up against the lathe chuck. Otherwise,I'm quite comfortable using one in my right hand. And,I don't know what I'd do with a left hand bolt action rifle. Or a LH action flintlock. And,I MADE myself learn to play the guitar RIGHT handed. One of the smarter things I ever did as a kid. I was reminded that I could never find a left handed baseball mitt,and did not want it to be that way with the guitar.