"Never happen" is quite an ignorant prediction to make when it's already been happening since the 90s. Sounds just like another one of the people that think everyone has to adopt something for it to be viable.
I actually know several people IRL who have VR headsets, so it's not super uncommon. It doesn't have to be "for everyone" to succeed - look at the hang glider market for example. How many people are flying around on hang gliders these days? It's still going on, and there's millions of dollars in the hang glider market. I only know one guy who used to fly around on one but I don't know if he still does.