I understand the privacy concerns but the reality is we're already all being recorded numerous times a day out in public, restaurants, meetings, the mall (including at Apple stores). There are red light cameras, security cameras, and practically everyone else around you already carrying a phone camera.
Just look on YouTube at concert videos, sporting events, "influencer/reality" channels, PoV videos, tourist videos, they all record bystanders that didn't give consent to be recorded. Any privacy concerns about smartglasses should also be leveled at smartphones. The irony is, there's no indication that someone took a photo/video of you, or recorded their conversation, using a smartphone because it can be disguised as them just using or looking at their phone. At least with smartglasses there's an obvious light indicator when recording or taking a photo with the Meta Ray Bans.