I think there's a huge difference in how one perceives these as a privacy/self-censoring risk. Yes, a bunch of tourists with their gopros might catch me in the background, but I think it's reasonable to assume that their intended target is themselves, and catching me in the background is incidental. If someone is recording with their glasses, basically by definition their target is not themselves (though perhaps a companion?), and it's more likely that I am their target.