The bar is like a second home
The young boy moved to Long Island with his mother after fleeing his alcoholic father.
In the new environment, he is mostly drawn to one place: the Dickens bar, run by his uncle Charlie (Affleck). There, various guests become practically his second family and become a better father for him than before.
A few years later, as part of his experience at the New York Times, JR began writing a story of childhood memories that undoubtedly served as a cinematic framework.