It could be that 'end of story' has become a common idiomatic expression, and people use it habitually. Also, in some cases, leaving out 'the' gives a more emphatic or final feel to the phrase.
The number 30 at the end of the story might be a code or reference that only makes sense within the author's creative vision. It could also be related to a countdown or a milestone within the story's timeline.
It could be that the sweatshirt has some special significance. Say it was a gift from a very important person or it represents a memorable event. So when it comes to that particular sweatshirt, there's no more to be said, it's just 'end of story'.
The end of a story is crucial as it can leave a lasting impression on the reader. It can make them feel satisfied, sad, or even inspired. For instance, in a story about an underdog achieving success, a positive ending can motivate the reader. Also, it often reveals the overall message or moral of the story, guiding the reader's understanding of what the author intended to convey.
It's hard to say exactly. Maybe in a particular context or story, 30 has been assigned a symbolic meaning representing the conclusion.
Maybe she's sad because she lost something or someone important.
The end of Toy Story 3 is sad because it marks the potential end of an era for the beloved toys and their adventures together. It evokes a sense of nostalgia and the realization that things change.
It might be that Wilbur was happy at the end because all his problems were solved and he felt a sense of accomplishment and peace.
It could be that the author had a planned ending in mind from the start or ran out of creative ideas. Also, sometimes external factors like low viewership or publishing decisions can lead to a story ending.
It ends when the main conflict is resolved and all loose ends are tied up. That's just how most stories work.