I suppose to understand the premise of a newer technical idea we could look into how it is perceived in the sci-fi works. I can not say I am any way en expert

I suppose to understand the premise of a newer technical idea we could look into how it is perceived in the sci-fi works. I can not say I am any way en expert or geek for everything sci-fi so please keep in mind the below points are how I see this from my limited point of view and knowledge. Consider mobile phones, tablets, It was mainstream on sci-fi even before it was even remotely possible on reality. Everyone, unless considered a recluse had a handheld communication device. It was not perceived as a niche product that only a limited set of people uses. It's used all of the time, not something that is reserved for particular times or places. And considering everyone reading/watching/listening the works would want to have a piece of it, I can really say it was always meant to be mainstream if it was built. And it did. Let's have a look on VR and AR. Is it considered mainstream in sci-fi? Like everyone without any distinction uses them? Is it something considered a timeless/place-less device that everyone has and uses? I don't say it's not considered useless. I say it's most of the time considered a niche product or device, a limited set of people has access to. Either rich/privileged or with a particular job that requires the use case. It's not considered to be used all the time. It has it's times to be used and then left to itself. And If someone is in fact uses it for extended periods or never gets out of, they are the recluse. If I am not mistaken on how I view it, I don't think these AR/VR devices are meant to be mainstream. Perhaps a holodeck would be a wiser option to invest into?