Both my parents are left handed, but I am the only child out of 4 of us that is LH. My mom always curved her hand in when she wrote but I never did that. I think I am truly ampidextrious. I have no issues with the rulers, scissors, rotary cutters or mats. I can cut with either hand or on either side of the mat. I crochet & cross stitch left handed but knit right handed. I throw & catch balls right handed also. The only think I consistently use my LH is for writing & eating.