In By the waters of Babylon why do johns people avoid traveling on the godroads?

In "By the Waters of Babylon," John’s people avoid traveling on the godroads because they are considered sacred and dangerous, associated with the remnants of the ancient civilization that fell due to its own hubris. The roads are seen as places of death and mystery, and the taboo surrounding them reflects the deep-seated beliefs and superstitions of John's society. Only a priest, like John, is permitted to explore these areas, as they seek knowledge and understanding while respecting the boundaries set by their culture.