[beachbum8029]

Yet none of those same people have an issue with taking their phone out of their pocket constantly and glancing at it which has... a camera on the front! But I could see the issue of never knowing whether or not the glass camera is recording and whether that recording is going to wind up on youtube.

[mysterydip]

For me, Penny Arcade summed it up best: https://www.penny-arcade.com/comic/2013/06/14

The difference with a phone is generally people pull it out, do something, then put it away. You'd get a similar reaction from onlookers if you kept your phone front and center your entire day.

[TeMPOraL]

You never know when the smartphone camera is recording either.

[k__]

Wearing a Google Glass is like someone pointing a smartphone cam in your face all the time.

Yes, you get all the fancy AR stuff with camera, but I think you could still build a nice HUD without the cam.

[kbart]

True, but Google Glass is more like camera pointed directly at you. If somebody kept pointing smartphone camera at me constantly, I'd sure get annoyed.