What is the point of franklin's narrative?

i met a boy with bread . . and inquiring where he had bought it, i went immediately to the baker's he directed me to. . not knowing the different prices nor the names of the different sorts of bread, i told [the baker] to give me threepenny worth of any sort. he gave me accordingly three great puffy rolls. i was surprised at the quantity, but took it, and having no room in my pockets, walked off with a roll under each arm and eating the other. thus i went up market street . . passing by the door of mr. read, my future wife's father; when she, standing at the door, saw me, and thought i made, as i certainly did, a most awkward, ridiculous appearance.