Keanu Reeves signs a fan's hat with his left hand.
Jeff Gritchen/Digital First Media/Orange County Register via Getty Images
- About 10% of people in the world are left-handed.
- Lefties have to endure lots of little daily struggles righties might not think about.
- Swiping credit cards and cutting with scissors are just two harder tasks.
The world isn't always easy for left-handed people. While they may have the advantage in some sports, many everyday tools were designed for their right-handed counterparts.