My mother's mother and father's father were both lefties. Nobody in my parents' generation are/were, but several of my cousins on both sides are. I started showing a left-handed preference as a small baby, and my mother had the good sense not to fight it! I've had to learn my own way of doing some things (like crocheting) because I couldn't find lefthanded instructions. It does get challenging, trying to show my righthanded kids how to do things!