All major brands have a clear indicator for when they're recording.
Someone could block that indicator out, but someone could also just go to Amazon.com and select one of hundred of available pinhole cameras or not-smart camera glasses.
These aren't enabling an ability that hasn't been enabled for decades. If anything, seeing someone with main brand smart glasses makes it more obvious.
To their credit, smart glasses are an obvious signal for me to avoid. That doesn't make me appreciate them any more.
Hidden cameras have been a thing for a long time now. Stick one in a pair of glasses and give it a super short battery life and people freak out...
Now they're being billed as fashion accessories.
Sorry, but "normalize hidden cameras" isn't a movement I can get behind.
If anything, the primary utility of smart glasses is the wearable display, not camera. YMMV, of course.
But even machine vision-capable devices can do a lot of useful things without causing you any trouble, unless your issues are more of a religious concern rather than anything substantial.
Smart glasses sans camera would address my complaints (I take no issue with smartwatches, for instance), but that admittedly decreases the utility.
But... aren't already existing protections that make it e.g. illegal to distribute your image or its derivatives sufficient? If someone does you wrong, you can seek recourse. If everyone is respectful of each other (and we hate corporations instead of technologies), we enable a lot legitimate uses, making the world better: more accessible, and easier to learn and understand.
I think it's an issue of perceived benefit vs perceived risk. I see the utility in both technologies, but I assign significantly higher risk to smart glasses. I really struggle to imagine widespread abuse from dashcams.
Your desire to consent to being recorded in public places does not counteract my right to record everything I can perceive in public. Period.
I can't wait for the day brain-machine interfaces will become more advanced and commonplace (so cyborgs become something way more advanced than just limb prosthetics), and hope the day comes fast enough so the true issue is forced before any decisions are made off the ill-informed assumptions and the shuttle designs are left to depend on a width of horse's ass.
I'm still going to avoid you like the plague.