Only 2 lefties in my family: my grandma and my daughter. When my grandma went to school in the early 1900s, they wouldn't let them use their left hand to write. Things are a bit more enlightened now, although I was once politely asked to "not change the computer around" by an employee at the public library when I moved the mouse at one of the computers in the kiddie room over to the other side for my daughter. When I (equally politely) explained that she is left handed and has trouble using the mouse with her right hand, the woman literally looked as if the whole concept of left-handedness had never occurred to her.
They don't mention it on their web site, but unless they stopped doing it recently,
this place in the Poconos sells left-handed novelties. (My daughter picked up a ruler that says "Lefties Rule".)