Why did Darry scold Ponyboy after the hearing?

Darry scolded Ponyboy after the hearing because he was frustrated and worried about Ponyboy's well-being and decisions. He felt that Ponyboy wasn't taking the situation seriously and was putting himself at risk by not focusing on school and his future. Darry's scolding stemmed from his protective instincts as an older brother, wanting to ensure that Ponyboy stays on a positive path despite the challenges they face.