Can you at least conceive that some people might find it deeply creepy that someone can follow their every step, and equally creepy to be able to 'spy' on another person 24/7?
Sure but those of us who have this sort of tracking for our loved ones enabled arent looking at that 24/7, and if you are referring to the corporations, well they already were. At least now they have made it useful to everyday people.
If you don't trust someone with your location, you don't have to give it to them. Personally I find the corporations angle more creepy. You cannot personally vet the people they hire, but you know who you give access to your address to. Outside of family, only one friend ever drops me his location information temporarily because he drives his truck and he uses it to give me a heads up when he's near him in town, in case we can hang out. I mostly ignore it though unless he tells me how close he is.