In this paragraph the author uses an anecdote. An anecdote needs to be a short amusing or interesting story about a real incident or person. In this excerpt the anecdote is used to illustrate the main aidea.
An example is a way of adding detail to make a paragraph better and stronger. It is not an analogy because by definition an analogy is a comparison. Metaphors and similes are types of analogy. An example is a way of adding detail to make a paragraph better and stronger. It is not an analogy because by definition an analogy is a comparison. Metaphors and similes are types of analogy. It is not elective because it is not optional therefore it could not be removed.