Current research suggests that declining attention is most likely caused by an expectation of quality rather than actual personal issues. Condensing information is a valuable skill an people do not have time for middle length content just to be disappointed.
I am not average then. I use tiktok to discover musicians, get short informative videos from science enthusiasts, and poetry or life advice.
Some of these are only possible because of the remarkable recommendation algorithm but I stay hopeful.
The flip side to that is great though. Imagine a few houses per street supplying batteries for more draining activities in a connected neighborhood.
This article at bbc references the time as misguided.
This article shows that measuring attention spans is not that easy and our world is more distracting. Not a good think but it does not blame the people.
This Booktuber got some sources and a nice way of presenting it.
One might argue I am splitting hairs and I do not blame you if you think that. I hope some people think harder about their focus and how to find some calm moments. Yet I say that while searching up sources because I got a mobile notification.