On the Fourth Wall · 1:09pm Sep 1st, 2017
When a character attempts to break the fourth wall, it may disturb a suspension of disbelief. A reader may not want to participate in the story as a character. Or the world in the reader’s mind is too different from the world in the writer's mind.
It may be especially disturbing if the author switches to the second person narration.
Of course, sometimes and for some genres it may work.