> It is the ease and convenience to which we have become so accustomed that keeps us from choosing more private (but also more clunky) user experiences.

Often true, but this is a bad example:

> Sure, you could turn off your geo-location settings for a taxi app so that it stops tracking your every move, but the hassle of having to manually enter your current location every time you want to use it may feel like too much of an effort to be sustainable.

"Tracks your every move" and "needs you to manually enter your location" aren't the only two options. You could have "summon a taxi" button that transmits your current location to a given service one time.

The crucial thing is that the user should have control of what they share with whom. That's what privacy means.