DS5 was exactly like that too. He always wanted us to draw for him and didn't want to alternate with us, either. Eventually (when he was a little older) he started getting really upset when we didn't draw something the way he wanted it -- the beginning of the end of us drawing for him! Now he does his own drawing and loves it (preschool has been a big help with that), though he isn't too thrilled with writing. I don't know yet if he will be a perfectionist with other things. I told him that his letters won't look like ours until he gets older and his wrist bones finish developing... he just stared at me and then said "Oh, OK." lol. It did seem to help a little bit.
