What makes grandpa sound glamorous to the narrator's friends from the medicine bag?

In "The Medicine Bag," the narrator's friends find grandpa glamorous because of his unique heritage and the mystery surrounding his Native American identity. They are fascinated by the stories he represents, viewing him as a connection to a rich cultural history and tradition. The physical attributes of his medicine bag also add to this allure, as it symbolizes wisdom and the power of ancestral traditions, making him appear larger than life in the eyes of the narrator's peers.