When it is time to pay the fees, what does he do? How is he disobeying the elders by doing so?

When it was time to pay the fees, he tucked his bag under the arm and left the school and simply kept on walking in the noise’s direction i.e., straight. He reached the point where the Kambelpur railway station began. The elders had warned him never to cross the railway tracks and never eat sweets with one’s fees money. All these instructions escaped his mind that day, anyhow.