Age of a manuscript doesn’t necessarily confirm anything. The apostle Paul said there were people passing around spurious letters as if he had written them. I suppose if one of them cropped up, there would be consternation.
True. That's why I said "clue". You can also gauge that indirectly by reliable historical reference to the book. Based on that it doesn't look earlier than mid to late 2nd Century.
Solomon was right; there IS nothing new under the sun!