What was ironic about Stanley new nickname in the story Holes?

In the story "Holes," Stanley Yelnats receives the ironic nickname "Caveman" because he is sent to a juvenile detention center where he must dig holes in the desert. The irony lies in the fact that while the nickname suggests a primitive and brutish character, Stanley actually demonstrates intelligence, resourcefulness, and moral integrity throughout the story. His nickname contrasts sharply with his true nature, highlighting the theme of identity and the misconceptions others have about him.