There are several purposes to using stock characters. Stock characters are a time- and effort-saving shortcut for story creators, as authors can populate their tale with existing well-known character types. Another benefit is that stock characters help to move the story along more efficiently, by allowing the audience to already understand the character and their motivations. Furthermore, stock characters can be used to build an audience's expectations and, in some cases, they can also enhance narrative elements like suspense, irony, or plot twists if those expectations end up subverted.
There are several purposes to using stock characters. Stock characters are a time- and effort-saving shortcut for story creators, as authors can populate their tale with existing well-known character types. Another benefit is that stock characters help to move the story along more efficiently, by allowing the audience to already understand the character and their motivations Furthermore, stock characters can be used to build an audience's expectations and, in some cases, they can also enhance narrative elements like suspense, irony, or plot twists if those expectations end up subverted.