She has a motor boss and a spoked wheel she would HC real easy IF you can find a HC to buy. If not a spinner knob would go on there until they get the hang of sewing. It would give the girls some good control when they sew if they can use their left hands to guide the fabric. The machine looks like it has been well used!!! I love it when I find one like that. It won't hurt the girls to learn to clean and oil it, too.