Why are classical allegories not regarded as realistic fiction

The correct answer is:

Their characters are generally flat and merely function as symbols for particular concepts.

Explanation:

Writers or speakers typically use allegories as discovered devices or as rhetorical devices that convey (semi-)hidden instead complicated applications by symbolic figures, actions, metaphors, or events, which collectively create the moral, spiritual, or political interest the author wishes to write Classical allegories are metaphorical in nature. This means that they include metaphors, imagery, and symbolical messages all eventually the story. Stories are often philosophical and political in nature that could impose morals or education. Allegories are involved in nature and are often thought-provoking and can be defined uniquely by each of its readers, spectators or listeners. On the other hand, genuine fiction is a type of fiction in which the story has elements that can be seen by the audience as something that is currently subsisting and convincing to them.

the difference of the poems of walt whitman and emily dickinson is that whitman uses personification, whereas dickinson avoids figurative language. whitman incorporates transcendentalism and realism in his works. on the other hand, dickinson's poems talks about death and immortality.