An empirical example would be Amazon's utter failure at making voice shopping a thing with the Echo. There were always a number of obvious flaws with the idea. There's no way to compare purchase options, check reviews, view images, or just scan a bunch of info at once with your eyeballs at 100x the information bandwidth of a computer generated voice talking to you.
Even for straightforward purchases, how many people trust Amazon to find and pick the best deal for them? Even if Amazon started out being diligent and honest it would never last if voice ordering became popular. There's no way that company would pass up a wildly profitable opportunity to rip people off in an opaque way by selecting higher margin options.
Even for straightforward purchases, how many people trust Amazon to find and pick the best deal for them? Even if Amazon started out being diligent and honest it would never last if voice ordering became popular. There's no way that company would pass up a wildly profitable opportunity to rip people off in an opaque way by selecting higher margin options.