I wonder whether this study was not careful enough to distinguish those who grew up with technology vs. wrestled with exposure late in life. Looking at people

I wonder whether this study was not careful enough to distinguish those who grew up with technology vs. wrestled with exposure late in life. Looking at people in their 60's, you have early adopters from their youth as well as those who were set in their careers before being exposed (probably via the IBM PC and its clones if at all). After net chats and other ancient technology, IRC and then video chats, my only stress with the technology was 'net overloads and dodgy software. I would think that's similar for others who started as kids. The only problem with phones was the cost of long-distance and things like MCI solved that one.