Because we're awesome that way. Could also be a righty who grew up surrounded by lefties whose awesomeness just rubbed off.
Your Left Handed Child book
18 Things Only Left-Handed People Understand
Left Handed Children's Products
Scissors and cutting guide for left-handed children
Being a lefty has made me a better person.
Left Handed Children - help for children, parents and teachers
Teach a Child How to Tie Shoes Using Their Left Hand Instruction Card Plus Two Left Handed Scissors for Kids Lefty's The Left Hand Store http://www.amazon.com/dp/B00A1HJF4E/ref=cm_sw_r_pi_dp_3nU3ub1S65VYC
8 in. Left Handed Fiskars® General Purpose Scissors - no one steals these off your work desk!