* He has flaws: Greg is not perfect. He's often insecure, makes poor decisions, and can be selfish at times.
* He changes and learns: Throughout the series, Greg experiences growth and learns from his mistakes. He develops a stronger sense of responsibility, learns the importance of friendship, and gains confidence.
* He's complex: He's not simply a "good guy" or a "bad guy." He's a mix of traits, making him relatable and interesting.
While he may not be the most mature or responsible character, his flaws and development make him a round character.