Exactly. They live too far away from humans to know anything more human-terms such as resin.

As for the NPC thing, yes, that's D&D. Which also is a rp thing, I'm aware. But not a written roleplay. That's a tabletop kinda game, not a more story-themed thing that roleplays like these are written.

As such, all characters will be controlled by a living person. Be it yourself or another person that you let have the character.