Perhaps it was a special occasion. For example, if it was a family gathering, grandpa telling a story could be a way to bring everyone together, creating a warm and nostalgic atmosphere. His stories can remind family members of their roots and the shared experiences that have made their family unique.
Listening to grandpa tell a story is interesting because his stories are often filled with adventure and mystery. He might recall his travels, or strange events that happened in his neighborhood when he was young. His storytelling style is also very warm and personal, which makes you feel like you are right there in the story with him.
He tells a story because he loves the attention. When he starts telling a story, people gather around, and he gets to be the center of attention. Also, it's his way of connecting with the younger generations. He wants to show them that there is a lot to learn from the past, and through his stories, he can teach them about values, history, and the quirks of life in Springfield.