In certain renditions of the original Pinocchio story, he does die. This could be as a result of various challenges and mistakes he makes along his journey, serving as a moral lesson.
The Blue Fairy helps Pinocchio. She is the one who gives him the opportunity to become a real boy and also guides him in a way. She warns him about the consequences of bad behavior like lying.
Another theme is exploring the backstories of the characters more deeply. In the actual drama, there may not have been enough time to fully develop all the characters' pasts. Fanfictions can fill in those gaps, like delving into the character's family history or how they came to be the person they are in the drama.
No. Pinocchio is a fictional character from a children's story. It was created by Carlo Collodi. It has elements of fantasy like a wooden puppet coming to life, which doesn't happen in real life.