I didn't know that steer-by-wire was even legal in the US, but according to the article Toyoda is already doing it in a couple of their models. I'm not sure how I feel about not having a direct link to the steering, but physical links can fail too. And you can have backup "wire" links much easier than you can add a backup physical link.
It’s standard for motorcycles to be ride-by-wire these days, on the throttle.
A gas pedal in almost every modern car is also electric, but not steering wheel.
Arent there instances when it would be useful to be able to steer your car with a dead battery? I didn't know Toyota had done steer-by-wire already. Is that in their electric vehicles only?