This is my point. Wearing computers that put images right in your face are going to inherently distract people. They will be more focused on the information than what they are doing, and people will have more accidents as a result.
This type of technology has great applications in fields like space exploration and the military and I'm sure a bunch of other things I'm not thinking about. It's practical application in the real world is minimal to none. Great for pilots perhaps, but the average moron schmoe that doesn't know to go when the light turns green doesn't need this - and that's the majority of the people out there unfortunately.