The ability for people to have amazing technology and spend no currency on it is, in my opinion, a net positive for the world. But it would be nice if there were some provable toggle switch to choose between paying with data and paying with currency, for those who prefer the latter. Since proof is problematic, carefully selecting your vendor is the toggle switch, and that kind of switching unfortunately has switching costs including the massive inconvenience when, say, using an Android phone without a Google account.