He'd get experience working with rhyme.
He'd be able to translate his own life experience into a theme.
He'd learn the fine art of writing poems.
Answer: all of these
Are you going to give a selection or not? If not, then the sentences that have collective nouns in it are like a flock of sheep or a school of fish Something like that.
When a protagonist has a strong belief against the majority of the community or surroundings and decides to act on it