From your own link:

Germany's network regulator says smart glasses are legal "as long as the recording function is clearly visible." Reuters reports:

People can file lawsuits all they want, doesn’t mean they have merit or will win.

Every country has had laws around recording/photographing in public for decades. This isn’t new. Most of them, overwhelmingly so, give you no expectation of privacy when in public areas, because otherwise you’d essentially be banning cameras and video recording in the country.

I say you’re the one who is out of touch because you don’t appear to know that these laws exist already.