Is voiceover narration necessary in short films?

In this post I will be coming to a conclusion on whether narration in short films is necessary or not. To begin with I will have to weigh up the positives and negatives of narration in short films.

• A narrator's voice over can aid in telling the story during a film, instead of relying on visuals and the character's dialogue.
• A narrator's voice over makes it easier for the viewing audience to digest whats happening on screen.
• A voice over from a narrator can share the inner-thoughts of a character. This is commonly used on the film 'American Psycho', when the lead character thinks about his actions on screen. 

• A narrator's voice is sometimes quite bad when its not used in the right part of a film, or the narrator's voice is not engaging. 
• A voiceover can sometimes give the viewing audience to much to digest.

OVERALL, I would argue that voice over narration is essential in short films. It makes them more interesting and it makes up for the shortage of titles in a short film. There is more film and less titles, so a narrator's voice over would work nicely with whats on screen.