- Love of Shakespeare: The child or their parents may be fans of William Shakespeare's play "Macbeth" and admire the character or the story. Naming the dog after the protagonist could be a way to show appreciation for the play.
- Misunderstanding of the Story: Children might not fully understand the complexities and tragedies associated with the play, focusing more on the grandeur and iconic nature of the characters. They might see Macbeth as a strong or powerful figure and want to associate their pet with those traits.
- Association with Bravery or Strength: The child might perceive Macbeth as a brave or strong character, despite his flaws and the negative consequences of his actions. They might want their dog to embody these traits and choose the name accordingly.
- Unique Name Preference: Children often enjoy choosing distinctive and interesting names for their pets, and Macbeth stands out as a unique and recognizable name that may appeal to a child's imagination.