Consumption doesn't mean entertainment, unless you think navigation and driving alerts are entertainment?
Satnav systems potentially make us worse drivers as well. If I have to look down at the system (which I do) it's much more intrusive than Glass, which only requires I look up and slightly to the right to see. It is certainly not directly in front of your eye unless you are wearing it completely incorrectly.
Have you had Glass on? It isn't as intrusive as you appear to believe.
And to be clear, since you didn't say it, the screen is off between those turns. It also gives you audible directions just as any other GPS would, so you don't have to look at it.
Satnav systems potentially make us worse drivers as well. If I have to look down at the system (which I do) it's much more intrusive than Glass, which only requires I look up and slightly to the right to see. It is certainly not directly in front of your eye unless you are wearing it completely incorrectly.
Have you had Glass on? It isn't as intrusive as you appear to believe.