A lot of camo is made for tromping through the woods. Even if it wasn’t necessary, its made for the function of hunting… And maybe dragging critters through the woods. If you’ve never done it, you can’t really imagine how hard it is to drag something through the woods. Not even I can… I’m just a supervisor. ;D Hey, someone has to be there to stand around and comment and make sure its done right, right? :) You need functional garb to do it and camo that allows you to do whatever in the woods without having to worry about your clothes is a good thing.
The orange is for protection against other hunters. Deer cannot see orange, but people can. If you hear something big coming through the woods and see orange, you won’t point a weapon at it. If there isn’t orange, and its big, a weapon gets raised at the least, if not fired. Also, orange vests just appear to be a blob, not a predator, to deer.