It's wrong to drop out of school.
Greg has been put on the spot by his teacher who asks him a basic question he cannot answer which earns him a reputation for being unintelligent.
Greg wants to avoid struggling in class in front of others.
Greg signs up for some one on one lessons to improve his understanding of the material.
Greg decides to drop out of school since he's so far behind.
Greg's parents consider him to be responsible kid for making this decision.
Greg's parents think he will not make anything of himself.