I don’t think it’s a big deal most of the time if in public. And private places are always allowed to ban cameras. If you ban smart glasses because of the camera, then you have to ban phones and that was tried and failed in most places. And banning cameras in public or requiring a license to carry one would be a huge hit to freedom overall. All of those things were already tried when portable cameras and then cell phones with cameras were new if you want to research why.

The idea is to allow social pressures to deal with these things. And most of the imagined problems never actually pop up. Like there wasn’t much of a significant increase in illicit photography in changing rooms when cell phones were allowed. The only difference here is that the smart glasses may end up being difficult to differentiate from ordinary glasses eventually. But companies like putting their brands on things, so that may not end up being an issue.

And there have been illicit versions of these things for ages and that isn’t going to go away just because it’s illegal to wear it. It’s already illegal to do a lot of the things people are using them for that you’re likely worried about. Having an additional law for possession is not going to change that very much and definitely won’t balance out the harm caused by disallowing all cameras in public.