Answer:
Main character versus society.
Step-by-step explanation:
After leaving behind a world of fantasy and high hopes collected during their childhood and teenage years, young adults are thrown into a world of competition and survival, where they will be judged and expected to have grown mature both emotionally and in their skillset in order to become relevant members of the society they live among.
This is the kind of conflict inside a story that young adults would be interested in given the resemblance of this topic to thier real-life situations.