That input of research does not, and thanks for yours (this is a forum), yet clarifies yet the number of distributors is a problem, and the lack effective discipline. As to that is this issue:
The average digital attention span on a single screen or task has dropped from 2.5 minutes in 2004 to roughly 47 to 40 seconds.
By the grace of God, I work on bikes for free (parts at approx. cost) on the sidewalk in a "low income" city in MA, and yesterday, once again I tried to teach a teen how to R+R something (bottom bracket bearings), getting his attention before I looked back to what I was doing/showing him, but when I looked up he was back looking at his phone, sitting on a bench. Maybe I should make a rule of no repairs unless they watch.
For any society to continue then the knowledge, wisdom and skills of the parental generation needs to be passed on to their children, but today, while knowledge is easy to obtain, the ease and lure entertainment eclipses instruction, esp. in physical work skills.
My father would put a wrench or screwdriver in my hand and talk me through it. He would alternate between "Are you stupid?" and "Are you blind?" whenever I screwed up, but at the end of the build/repair (bikes, toilets, lawnmowers, tractors, cars...) I could do the work. Watching and doing are not the same.
I’d agree that it should require a (verbal) contract - “I fix this so long as you watch, put the phone away”.
Young kids don’t realize how valuable it is for somebody to want to teach them something.
I’ll say “thank you” on their behalf :)