Different styles/methods of hunting, that's all. When I'm archery hunting, I try to key in on natural deer movement. In rifle season, (when there are generally more guys in the woods), I prefer to hunt escape route or places the deer go to when they are pressured. If nobody is pressuring them, I see less that day.
It can also be a matter of skill level or physical restrictions. Some guys really aren't very knowledgeable, so they have no idea on finding deer on their own or maybe cant travel very far. They simply walk in and sit down, and hope somebody moves something their way.
Lots of guys like to drive hunt also. Not gonna be a very successful drive if theres no deer moving.
If you're having trouble hunting for deer,
don't wish things were easier;
wish you were smarter.