Not only is it impractical in rural areas of the US like others have said, but in most small-to-medium sized cities as well. Some places simply won't hire folks if they don't have access to a car. Some small cities have no taxi service, and the larger (30-80k) that do often charge too much to use on a regular basis.

Not to mention the same holds true for rural areas of other countries as well, as the bus system might not come often enough to work, let alone buy groceries. Or you might have to deal with weather which makes bike riding (let alone walking) inconceivable.

Maybe in some places. In most of the non-urban U.S., it simply isn't feasible to live a normal life without driving.

Odd response to an article about... cars.

Yes. I do. (an older Civic, but close enough)

The point is you shouldn't assume everyone has a cellphone in their pocket. Therefor a car that broadcasts its location would compromise an existing expectation of privacy.

The rapidly growing use of ALPR devices is causing a similar compromise of privacy, but that's a separate problem.