My GD made her first quilt on my featherweight when she was 6. I did supervise her and we only ripped 5 seams. I usually rip more than that. She is tiny for her age, and I had to raise the pressure foot for her to reach. I did pin and press for her. It was a wonderful experience for both of us. She wanted to make a quilt and that is key to that age. She only sewed 20 to 30 minutes at a time and then she would play, eat, or whatever and then sew again. It took a week or so.