[munchbunny]

The only reason I can envision using voice controls for anything is in the car while driving, and you would only begrudgingly use them because it is overwhelmingly safer to have both hands on the wheel and your eyes on the road.

Yup, that's pretty much the only reason I use Siri. Though I could see VR as another possible use case, since hand controls in VR are less precise and slower than keyboard/mouse for textual input.