I am the complete opposite of you, give me voice control on every last device. All that I ask is that my data doesn't get fed into your network, give me an option to opt out of that and I would be happy.
Yeah, my thinking is that this is a simple enough task that no network connectivity would be needed. Plus removing hands on control could increase safety and cleanliness.
1) I don't want to have to trust the company that sold the product that they currently aren't doing anything with the data, or trust that they won't change their policy a year down the road.
2) Voice recognition doesn't work for mute people, people with speech impediments, people with voices that speech recognition doesn't understand, people that don't speak (insert language here), people that just want to easily and quickly push a button and not waste time or energy saying something, people that don't want to wake the kids in the back seat, etc.
(I wonder if removing hand controls for speach recognition would violate the Americans With Disabilities Act.)