Final answer:
Children between the ages of 2.5 to 6 years old are the ones most likely to imitate ghosts and monsters, as they have a rich imagination and enjoy fantasy play. As they grow older, their worldview shifts to more realistic perspectives, reducing such playful imitations of mythical creatures.
Step-by-step explanation:
The age group that is most likely to imitate ghosts and monsters are children ages 2.5 to 6 years old. This developmental stage is characterized by a rich imagination and the enjoyment of fantasy play. Little ones in this age range often engage in creative play by dressing up and acting out roles that they've seen in stories, books, or media, which includes impersonating mythical and spooky creatures like ghosts and monsters.
Children in this age group are known to have a more fantasy-based view of life, where the lines between reality and make-believe can be blurred. As they grow older, around seven to ten years old, their view of life becomes more realistic and less fantasy-based. That's when they are less likely to engage in imitating fantastical creatures as they no longer fear the monster under the bed and have aspirations to be more grounded adult figures when they grow up.