Realistically, the only thing we can do is make sure people understand to a certain extent what privacy they are giving up, what that can mean for them, and what are their options to increase privacy (both practical and advanced, for those that want to know). If they fully understand what it means and they truly don't care about their privacy, there is nothing that can be done.

Though I think most people care about their privacy when it comes to physical privacy. Nobody wants a stranger looking over their should at their phone screen. How many people would care if someone were sitting further with binoculars looking at the screen? Would people not care if they have their physical space, or would people care more about the fact that someone is watching what they're doing? Let's say anytime you got on the subway, it was guaranteed someone was always watching over your shoulder (tbf they might be), would you give up riding the subway? Some might, but I feel like people would make the compromise of their privacy for the convenience of the service. The only realistic way to get them to not take the subway would be to give them a private option that is just as practical. Otherwise, people would often give up the privacy for convenience.