What primary element do "Young Goodman Brown" and "A Pair of Silk Stockings" share?

The plot is less important than the character's psychology.

I would argue that both short stories present characters (Goodman Brown and Mrs. Sommers, respectively) that are weary of their current lives and, ideally, would like to be able to escape. Goodman Brown is losing his faith in his wife, his community and his religion, and Mrs. Sommers would prefer to focus on her and on her needs rather than on her children.