In the novels so far, young Griff is alive. George R. R. Martin has left many plotlines open, including young Griff's. There are various speculations among fans. Some think he might play a significant role in the future battles and power struggles in the Seven Kingdoms. However, until Martin releases more of the story, we can't be sure if or how he will meet his end.
There's no way to really tell if it's common specifically for someone named Jojo. However, in general, reading fanfiction is a popular activity among fans of many different franchises. The Jojo series has a large and dedicated fan base, so it's likely that there are fans named Jojo who partake in reading fanfiction, but we can't say for sure how common it is without more data.
The main characters in Jojo's Amazing Adventures series would die in each generation because the story of the series was set in a fictional world where all kinds of mysterious creatures and powers existed. In this world, humans often faced various dangers and threats, including natural disasters, evil forces, diseases, and so on.
In order to deal with these threats, the protagonists must constantly improve their abilities and skills in order to deal with more complicated situations. However, as the protagonists continued to grow and fight, they also continued to face various dangers and challenges. Therefore, every generation of protagonists would experience some death and sacrifice to show their growth and progress, and also to lay the foundation for the next story.
I don't know who the author of this novel is. There are so many novels out there and without more context or research, it's difficult to determine the author.
The '13 is too young to die novel' might deal with deep - seated emotions and social issues related to the death of a young person. It could show how a 13 - year - old's death impacts the community around them. Maybe it's about a young life cut short due to an accident, or a cruel social situation. It could also explore the psychological state of the 13 - year - old and those around them as they face this untimely end.