your words where: "due to the shift in reasonable expectations, soon people will have no (expectation of a) right to privacy in a public space"

I am not twisting that, i am just saying the same applies to "in your home"

There's a big difference between purchasing devices that have user agreements and interacting with others in public.

I don't see a big difference between the two in the matter of how the "reasonable expectations" of people are formed by technological realities. Sure there are minuscule formal differences, but on the grand scale going off-grid is like walking around in public with a ski-mask to avoid facial recognition.