I have no doubt that AR will be the future (VR? I don't know: I'd like to retain a sense of my surroundings when I'm working). However, I think most of the population will adapt.

Smartphones for the 60+ age group was a paradigm shift. It was very difficult at first, but within 3 or 4 years, it became pervasive worldwide. Somehow I feel that AR is less of a disruption than the "swipe" mode that touchscreens introduced around 2008 or so.