Not a fan of regulation in general, but would love to see a ban of cameras on glasses used in public spaces.
Why? What's the difference between that and one of the many, many concealed camera options that you don't even notice? Just that it's noticeable? I don't think that's a good enough reason for yet-more-regulation. You're already being recorded everywhere you go in public by the authorities, and often by people standing right next to you unnoticed, so just act accordingly.
You are the frog being boiled.