[arter4]

FWIW, that's exactly what I meant.

The thing about data, unlike many common objects (ignoring 3d printers), is that you can easily copy data you control. So the fact that the fridge tells you "as an additional comfort in your pregnancy, I would add X" (if it even says that clearly) does not mean it also don't send data to other people.

Again, this is not a science fiction example. Many companies have successfully sent personal data to other companies or leaked that somehow to the Internet.

Personally this still makes me uncomfortable, even if I know this cannot be 100% avoided in today's world. So if I can avoid volunteering additional data to some company in exchange for voice activated lights, I'm happier. Maybe it's just me, though... but probably not.