NO, but hell no! Packing and animal out is the only reason I can see to justify it.
Here in Colorado M/L hunters have to wear orange and its during archery season when they all camo up. Don't really have any problem with the M/L's shooting at the archers in their camo that I know of. Never wore any camo in California in 60 years of hunting either. The Colorado situation really frosts me. I wear orange so the archery guys can see me (and my gun), but they wear camo and I can't see them.....don't make a lot of sense. Somebody enlighten me!
The bad thing is that I believe that the deer, elk, antelope, etc can see the orange. The experts say it looks white to them, but no matter how they perceive it, it is not natural and they see it.