The only problem here is that you are trying to equate what amounts to s simple machine that has been in use for generations by the population to something that is *like* a bit of technology that the population is used to, but in reality is starkly different. The problem is compounded by adults that already have preconceived notions about the thing they are using. Everyone knows that a fridge cools their food and the freezer freezes it. Thats all it does. Everyone knows that a scale measures their weight. Now lets say they made a scale with wireless card that can talk over the internet to your doctors office and report your weight to them every time you weigh yourself.
On the surface, that scale is still just measuring your weight to the *average everyday user*. To them it is still just doing what they -know- the scale to do. Its secondary function isn't even something they've thought possible and frankly not something they are probably investigating before they get it.
We've had phones and mobile phones for a good while now. People know that they can make calls and text messages from where ever they might be. This is their frame of reference. Most of those same people didn't or don't know that their phone is equipped with GPS that allows them to be tracked because they don't have any reason to actively use that feature. All they know is they dial a number and it calls someone and maybe takes pictures as well. How many phone ads out there tout their GPS capabilities, and how many store clerks talk about it? Only people like us care to know about these features and even utilize them in any way. Joe Public on the other hand could care less, and that is the point. Should people know what the on board computer in their car is reading and keeping track of? maybe? Does knowing affect whether they drive their car, or how they drive it? Nope. Why? Because in the grand scheme of things they use their car to get from point A to point B and have no REASON to know that their car is keeping track of their speed and fuel usage and whatever else these computers track.