Answer: High schoolers/Teenagers
Explanation:
I'd say that the theme of this story encourages us that anyone can be important. Not just lawmakers or rich people or even extroverts, but anyone, whether you're a shy artist or an outgoing sporty-type. Some variation on that is probably what you're looking for, I shouldn't do your work for you! :)
Assuming the author is the speaker is the best option. Also, reading the peom out loud is another strategy.