Only about 10% of the world is left handed. The chances are slim that you're going to date one in the first place. This makes them all the more special.
They're natural born leaders.
Many of our presidents have been left-handed people. Bill Clinton, Barack Obama, Gerald Ford, and George H.W. Bush were all lefties. They make for great company too!
Left handed people are able to support themselves and be independent. Left handed people are 15% more likely to be wealthier than than the average right-handed person. They're about 26% richer when they get a higher education.
They're the best multi-taskers.
Left handed people are naturally better at multi-tasking. They can do numerous things at once, and isn't that a great quality in a partner? That right handed boyfriend can handle all the big chores while you kick back, right? I kid. It's important for both parties to share the work.
Left handed people tend to be more creative, innovative thinkers and have an artistic streak. They use more of their right brains than left, which improves musical, artistic, and linguistic capabilities. Leonardo da Vinci and Michelangelo were both lefties.