How exciting! I wish my GD wanted to learn. She doesn't have use of her feet or legs, so I have taught myself how to sew using my elbow to push the foot pedal, which leaves my hands free so I can still guide the fabric!
I can't wait until she's ready to learn :) For now she's happy just touching my leg... when she touches my leg, I start sewing. When she takes her hand off, I stop :) Even that doesn't last more than a few minutes and she ready to do something else (she just turned 4 in April).