By "World Scale" I presume you mean full scale, or 1:1. 1"=1".
It seems to me that it's always best to draw in the full scale mode because then
all the settings within the program are real and easily settable.
See if you have View>Options screen. There should be an Appearance tab. Untick
the Page box. This allows the page to be continuous in all directions, without
the bothersome page outline and gray area present.
If you're drawing a large item, like a house, it will extend well beyond the
page borders, but you won't notice. You can offset dimensions 2,3, or 10 feet
which has some meaning to you. If you're drawing in scaled mode, that distance
will be converted to some weird fraction and hard to change. That's only one of
many instances that can be confusing.
When you're ready to print, you can tick that Page box and scale the drawing to
fit. And you can convert it back to full scale for further editing.
Try getting used to that mode and see if it makes sense for you.
As a matter of fact, try drawing in both modes and see how you go.
> What are the advantages to drawing in World scale as opposed to choosing a scale at the outset of drawing?