On a recent weekend, my kids decided they wanted to sew something. My daughter, 10, designed the owl. She is fully capable of sewing it herself, but she ran out of steam so I assembled the pieces.
My son, 7, drew the griffins on fabric and then I sewed around them. He helped stuff. I try not to pressure my kids into sewing. I wait until they are ready to work on a project. Hopefully this approach will lead them to view sewing as a fun hobby (not something Mom made them do!).