I use voice commands in situations where I feel that touching the screen would be dangerous. But I can also use the steering wheel scroll wheels for many functions like answering the phone, changing cabin temperature, adjusting media volume, etc. Cruise control, gear selection, wipers are all on stalks that are just a few centimetres from the steering wheel. No need for an array of buttons that I would have to move my hands from the steering wheel to use.

The very last thing I want is some authority forcing the car makers to fill the dashboard with buttons or require some ghastly centre console.