Why is Merlin helping the wart sword in the stone?

Merlin helps Arthur, the wart, with the sWord in the stone to guide him toward his rightful destiny as king. He believes in Arthur's potential and seeks to prepare him for the responsibilities and challenges of leadership. By assisting him in drawing the sWord, Merlin aims to demonstrate that true nobility comes from character and wisdom rather than birthright. This act serves as a pivotal moment in Arthur's journey to become a great leader.