While writing a short memoir for a college course, I wrote the dialogue without quotation marks, the biggest reason being that I do not like how clunky it looks in Times New Roman. I do not mind it with other fonts, but when I look at it in Times New Roman, it just feels like it is affecting the mood of the piece. Instead, I am separating dialogue into their own line as the speaker switches. I did not worry until another student in the peer review wrote quotation marks around all of my dialogue.
This assignment is the closest to creative writing that I will have in this class, so if I do decide not to use quotation marks, I want to be able to defend that choice to my professor.
So what are reasons that writers will omit quotation marks from dialogue?