It's not impossible. It just takes more effort.
So when Matthew comes home from school with some of his works of art, I save the exceptional ones that say:
"I'm having fun"
Here is my little avant-garde's impression of lines.
(He has become more consistent at imitating horizontal and vertical lines. His occupational therapist drew the 4 lines on the left side of the paper.)
(He did an awesome job drawing a circle yesterday, copying his teacher's example. He drew the big circle in the middle of the paper.)
Cutting along a thick line with minimal assistance using a spring-loaded preschool scissors.
Stickers on a dino.