[The Might]

Somehow I feel that many here don't truly realise the physical and psychological requirements of such a journey. Without food, water, with the Ring whispering in your ear, blizzards, wolves, marshes, all kinds of evil creatures I somehow doubt that so many would make it.
I know I probably would not.
And as Tolkien said... only few, perhaps only Frodo in entire M-e could have made that far, so close to the end of the journey. This excludes brave and strong soldiers... so I doubt the journey is as easy as it sounds.
It's not about dealing with the fear of spiders ofr example, it's making it to Shelob in the first place.