People felt the same way about phone cameras at one stage. You might not be old enough to remember, or might not have even been born.
Phones in Japan had to be made so you couldn’t disable the shutter sound when taking a photo.
One thing I’ve really learned over the years is that a huge percentage of the population has virtually no ability to think ahead even a few years in terms of tech, let alone long term. I guarantee you that smart glasses are going to be as ubiquitous as smart phones and smart watches in a decade or 2. They are the natural evolution of the smartphone, or as an everyday wearable.