When we are teenagers, we don't do things tactfully and find ways to retaliate against those who have wronged us.
If you encounter the darkness of society at an age when your personality is not yet mature, will you choose to walk all the way to darkness or struggle to climb out of the quagmire?
Facing the same fork in the road, different people will make different choices, whether it is the influence of external forces or their own extremes.
What the author wants to see is whether a group of teenagers walking in the darkness will eventually move towards the light or indulge in darkness.
When you stare into the abyss, the abyss stares into you