castlewise said:
Oh, is that why the enchantment/curse that Odin put on the hammer in Thor sounded so weird. I looked it up and its "Whosoever holds this hammer, if he be worthy, shall possess the power of THOR!". I always wondered why he made it so general, it seems dangerous.
The reason why the quote is so general has to do with the character's origins. When the character first appeared, he wasn't the Norse god of Thunder. Instead, he was a crippled doctor named Donald Blake who discovered Mjolnir in a Norwegian cave (where it was magically disguised as a walking stick) and received the thunder god's powers when he accidentally removed the disguise and lifted the hammer. That would remain the status quo for the first few issues of the comic; the main character was Blake, who would use his walking stick/enchanted hammer to transform into a Thor-like being when danger struck. In fact, when he first met Loki he only knew about him due to his reading the Norse myths; he had no memory of him being his brother.
Eventually, Thor would be written as being the actual thunder god, and have memories of growing up in Asgard, although he'd still regularly transform into Donald Blake. This was done without explanation at first, and the idea of this character having two distinct identities went un-addressed. Eventually it was revealed that the character had been Thor all along, and that he'd been sent to Midgard by Odin to live as a physically frail human with no memory of his divine heritage as a lesson in humility. Later still the Donald Blake identity would be removed entirely and Thor would be Thor full-time.
The movies kept the "sent to Earth to learn humility" bit but removed Blake from the story (with the exception of an in-joke in the first movie.) Instead, Odin simply deprived Thor of his superpowers instead of giving him a whole new identity.
The point that I've spent entirely too much time getting to is that Thor himself was originally just supposed to be someone who happened to be worthy of Mjolnir, and that him being the hammer's intended wielder all along was actually a retcon.