As I'm not aware of the nature of figging stories, it's difficult to determine their age - appropriateness. Generally, if the stories involve complex or disturbing concepts, they may not be suitable for young children. However, if they are educational and family - friendly, they could be for all ages.
Sorry, I don't know what 'figging stories' are. It could be a term that is not widely known. If it's a new or local thing, it would be great if you could provide some context.
The main distinction of porn with a story genre from regular porn is the presence of a coherent narrative. Regular porn often jumps straight to the sexual action, while the story genre tries to add some kind of story framework around it. But in the end, both are adult-oriented and feature explicit sexual content.
Well, it's hard to say for sure. The concept of 'porn-like' is quite subjective. Some might consider certain novels with excessive sexual descriptions as such, but it depends on individual perspectives and cultural standards.
In many places, 18+ porn comics are considered illegal. This is because they can have a negative impact on society and violate moral and legal standards.