From an imaginary argument with a child:
Child: Why do I have to stay inside the lines?
Me: Staying inside the lines is a useful skill.
Child: Is not! Name one time its important! Other than coloring!
Me: You need to stay inside the lines while driving.
Me: Both require fine motor skills.
It was at this point that the imaginary child started bludgeoning me. Or I arrived at the park and ride. Take your pick.