I like smart glasses as they are useful for quickly capturing life's moments (friends/family/experiences) and learning more about the world around you. When i did some solo traveling in Berlin i learned a lot about things I was seeing thru my glasses.

I think Apple if and when releases their smart glasses they could/should add a privacy feature. The feature would anonymize and or randomize all strangers faces in the pics and vids you take who are not in your network (Apple already knows many faces in your network now).

Though Apple may never release such glasses but Google via Samsung will purportedly be releasing theirs this fall.