This is a large numbers problem that is not yet visible. You can't have everybody walking and talking. There would be too much noise (think crickets, cicadas, toads, etc.)

I'm not going into cycling/running and talking .. that's just not how things work when you need to breathe.

Driving and talking to a phone to then have it recite back to you 10 minutes of details you can just glance at but would be dangerous to?

If I'm relaxing on a couch .. i'm using a device. And please don't come back with "play me a chill song" as a fancy use case.

What I'm trying to say is that voice is not it and the only other kind of interaction I'm looking forward to see evolve is neuralink-style. In the sense that it needs to be wireless / non-invasive for mass adoption. That's it.