People who read engineering drawings are accustomed to the location and meaning of data presented in standard ways. When data is not present or is presented in non-standard ways, errors in reading the drawing occur and/or extra time is consumed sorting out the meaning. Such delay reduces manufacturing productivity (and gives the engineer and/or drafter a bad reputation). Parts may cost more, and customer satisfaction may suffer.
In short, working to recognized standards facilitates communication all around.
In short, working to recognized standards facilitates communication all around.