I’m not trying to troll, I’m genuinely curious. Thinking about deer specifically, it doesn’t seem like visual camouflage would really help much when hunting them. Deer sense predators by sensitive hearing (big ears) and smell (long snout). Their eyes are on the sides of their head, so they detect motion rather than high-resolution.
So trying to blend in with the surroundings doesn’t seem to be an advantage in this case. Assuming all this, what’s the point of clothing with camo print on it?
For deer camo is irrelevant because most cases you have to wear hunter orange (or pink) because you don’t want to die by being shot by another hunter. Also the deer don’t really notice the orange so it works out. If you strictly hunt deer you should focus on staying warm and wear hunter orange, camo doesn’t matter.
For waterfowl and Turkey especially though camo is necessary. Birds are really good at seeing danger so if you don’t blend in you have almost no chance of getting one.
The reason a deer hunter would likely be wearing camo is they also hunt turkey/waterfowl and gear isn’t free so they use a lot of the same gear for both seasons.
At least this is why I wear camo while hunting, I do both, but I’m fully aware it doesn’t matter for the deer. The gear is just good for long duration outdoor activity in all weather.