There has been made studies how people react when they are being captured to be stored in specific location.
People reactions were totally different depending the way of capturing the moment.
When a artists paint or drawed a situation with good accuracy of the person, people kept it as honor to be captured there.
When a photographer toke a big size camera (architecture camera) on tripod and focused the camera etc 15 minutes and finally got a shot, most people felt it was honorable and not bad to be captured to that location.
When a photographer used a pocket camera, people started to feel little shy and simply turned their head or avoided being in shot other way but it was not so negative that people would get angry or something.
But when a photographer toke photo with DSLR, hell got easily loose. People get angry, they wanted to avoid situation more often and even asked photographer to delete pictures. Same situation with smartphones happened than with DSLR, it was felt to be intrusion to your privacy in the public place.
It is not about the capturing the moment, it is about what can be done with the picture what people don't notice being so hateful.
Example, no one really cares CCD camera being on street, as people know no one search those videos and if someone is watching a live feed, it is propably a single guard who has dozens of monitors a front of him/her.
No one cares if artist is capturing the moment because people trust the artists to get a good picture and it is possible presented somewhere on art gallery sometime or after decades in some book or something.
When it comes to pocket cameras, people felt that it is more like a "turists" or "family shot" because it is the familiar usage of pocket cameras, pictures gets in the photoalbum at someones home etc.
But when it comes to DSLR, it is status for professionality, someone is making money and has possibility to sell the picture to news papers or some other publicication where lots of people see it and people don't want to end up on news paper page or in somekind ad.
And when it comes to smartphones (phonecameras) it is a real threat because people know the picture can be sent at that moment to someone else, someone can be spying about them and the image can be shared quickly to lot of people.People have heard about school bullies and people taking snapshots in swimming pools etc and have very negative feelings about smartphones in public places.
So what is the Google Glass situation?
I believe if such studies and tests would be done with Google Glass included, it would bring same reaction as smartphones.
But there would happen same thing as with smarphones, it is slowly accepted to happen around you but be limited. As some point when the Google Glasses gets more familiar to people, they accept them as they do the smartphones and tablets.
Still they do not want to get in nasty situation in someones youtube video or something, what is probable why there will come requirement that Google Glass has a brigth red led blingking top of the corner so everyone around you can see that you are recording and when taking a picture it would pulse couple times with somekind "Click" sound.
It would easy peoples reaction as they can avoid the situation and turn their head if wanted without feeling same as people push camera phones front of them or hold it toward them as it is after all, person is looking directly toward you with glasses.
