CO's right. Episode IV was only meant to mimic the Saturday serial's he loved. He never really had anything but a backstory outline for the Prequels, just to give weight and context to the Original Trilogy.
He did mention that if he ever would go back and tell the backstory that they would be different in tone and style. But, he didn't have it all planned out. He had the highlights in outline form as CO said. But, there are hints in his outlines and drafts for the Original Star Wars of what the Prequels could shape up to be like if he made them. The biggest hint was the Prologue to the original Star Wars novel.
Still, I think you and I, are the only ones at the moment who believe that he made it work quite well, even if he didn't have it all planned out to the letter.
And what's this issue about the word youngling? It's just a word.