If you are afraid of technology, Android or iPadOS is lightyears ahead of Windows or MacOS.
It's more than enough to handle paying bills, applying for jobs, etc. Hell, a Bluetooth keyboard and a bit of grit + GitHub CodeSpaces and you can write develop applications.
You can also cast your screen to a TV or on a handful of phones use USB c to HDMI.
The post I was responding to clearly meant “like smartphones replaced […] laptops,” which is to say, they don’t think AR glasses will replace smartphones (because smartphones didn’t completely replace laptops). I get that.
Then I pointed out that smartphones did more-or-less replace a number of other electronic devices. And there are some reasons they didn’t fully replace laptops. Then I went on to think about the niches that could exist should AR glasses become a major thing.
I believe that was the entire point of the comparison. Smartphones replaces SOME use cases of laptops in the same way ubiquitous smart glasses could replaces SOME use cases of smartphones.