I doubt whether any of us are prepared for that moment when we don augmented reality 'spectacles'
Some people will be - the minority of people who bought into Google Glass before the realisation hit them that it wasn't enjoyable or useful in any significantly better way than getting information from a screen (either on a phone, tablet or monitor). Plus the large majority who took the piss out of them and called them "glassholes", because they'd realised this would be the case without having to buy and try the product first.
The fallacy that all it needs is better graphics and a bigger hype to make the idea catch on has arisen amongst those who ignored this basic lesson in their desperation to be pushing "the new thing", as easily proved by the stubborn non-adoption of the VR world by the general public. I think this is because many people are fully able to imagine what the user experience will be like, and conclude that it's not really going to be worth buying, as it doesn't offer much that they'd really want.
Bombarding the public with adverts featuring lots of happy smiling attractive young people pretending to be having a great time whilst having VR headsets strapped to their faces will, I suspect, be met with much more derision and piss-taking than those trying to push this idea expect.