I believe it has got to do with your habits since you were a
toddler. If your parents kept on insisting that you use your right
hand to do simple things like using toy hammer with right hand,
opening bottles with right hand, throwing balls with right hand,
scribbling with right hand etc, you will be right handed
eventually…. If nothing is done to specially restrict the use of
either hand, the child will grow up with a random preference of
either hand.
