I have a number of places that without GPS coordinates you will never get back to until you have made many trips there. Even then some of them are super tricky to get to, especially the ones deep in swamps where the waterways are constantly changing how and where they run.
or needed to know exactly where it was taken because very few animals/wildlife are in the exact same place, day to day, in my experience.
You should probably spend more time in the wilderness and up that experience.
Almost all animals have a place they sleep every night, a place they feed from as well as a water source. They will follow the same path (more or less) to and from these places on a very regular basis. Some have small ranges and can be found coming down the same path at the same time every day. Others have huge ranges and it may only be every 2-3 days or sometimes longer, depending on how big the range is. I should also point out that these 3 main places (sleep, food, water) will change as the seasons change and if you follow the same animal over years you will see that even those places are the same from year to year. That is until something causes it to change like drought, or fire, or flooding, or men clearing the forest.
A large rain can change that pattern because it may cause a particular plant to suddenly grow. If that is a food source for the animal they will know about it and go there to get that easy food. If they are a prey animal like rabbit going to a place after a rain the predators of the rabbit will also go there. Many times these places are the same every time there is a big rain.
Raptors (eagles, hawks, owls) tend to have a handful of places they like to hunt from and will always use the same perch to watch for prey from. They move between those spots based on sun position as well as wind direction. Once you learn those habits it easy to find the same bird in the same spot on a regular basis. Even birds like Kingfishers have the same hunting perch that they use over and over and over again.
Granted, you can do all this with a standalone GPS unit. Which is what I have been doing for years now. But having the ability in the camera has made a lot of things easier. When I find say Lynx tracks I would mark it on the GPS and then have to label it as Lynx tracks. Now I can just take a photo of the tracks and later when at home I can sync up all the data. It has just made things simpler when in the field, especially in the winter when taking off gloves to type on the GPS is just uncomfortable and at times down right miserable (like when it is -40F with 20mph winds).
So, you can get along without it in the camera ( I have for years)...........you are right. But you are completely wrong about animals not being in the same spot day to day. I really do suggest you get a bit more experience on this before speaking about it.
Lots