In the beginning of Pawn of Prophecy, Garion won’t believe Belgarath at first that he really is Belgarath and holds the opinion that sorcerers are legend only. Subsequently, almost everyone they meet immediately recognises father and daughter (apart from the Tolnedrans).
Why is this the case? Do only kings and other important plot characters have the knowledge that sorcerers do exist? Or was Garion just brought up the way to accept they don’t exist?