They could change form factors for wider acceptance. A form factor that looks like hipster glasses with lenses that dynamically darken would do very well.

For some different and older crowds, building these into visors and caps would be good for tourism applications.

Add an app that can do limited communications -- like yes/no/maybe/Google-that-please using 1-3 taps on your cellphone, or give a human assistant the ability text and ask questions and pop up a dynamic menu, and this would be very useful to businesspeople and diplomats.