Why wouldn't Garvey and Edwin help Cole build his cabin?

Answer 1

They didn't help because after Cole destroyed the first cabin they convinced Circle Justice to give Cole another chance, however this time they decided to make the chance more difficult. Cole had to do everything on his own.

Hope this helps. :)

Answer 2

Garvey and Edwin did not help Cole build his cabin because they believed that Cole needed to take responsibility for his actions and learn from the experience. They wanted him to understand the importance of hard work, self-reliance, and accountability in order to change and grow as a person. By making Cole build the cabin on his own, they hoped he would gain a sense of accomplishment and develop a deeper understanding of the consequences of his past behavior.