Anyway, I don't think the screen matters much per se. Being social in person is good. Not being so is bad.
This is strange to me. It seems like a modern change -- is it? Mostly today I see people listening to music while doing something else, or hearing it as background for movies/TV/games/commercials/stores.
In the past, we didn't think it was strange to just listen to a record. That was how we heard music. It wasn't a sign of depression. (Before 2005, the most I ever did to music was drive a car.) Music used to be a more social activity due to technological limitations, but one consequence is that it was more often a primary activity.
I suspect that I have some condition (hidden hearing loss, perhaps), as I can't just listen to music while doing something else. If there's music playing, my brain can't ignore it, or background it. Maybe these people who listen to music in private simply aren't physically able to appreciate it the way most others are. The constant noise of modern life causes anxiety for me, too.
Concerts may be more social but they're also a lot more expensive. Bumbershoot was $10 in 1997, $35 in 2007, and $130 this year. You can't blame teens for choosing to listen to music in private. I don't know how any teens could afford to go to concerts today.
I'm very happy that the genres I listen to are still rather niche and out of the mainstream. The most expensive concert tickets I've ever bought were less than $100, and that was an arena show with two fairly big local bands.
It's called listening carefully and it's something that every serious musician does on a regular basis. What a strange notion you have that this, an act that requires concentration and discernment, is unhealthy.
Looking at the list of activities from a correlative standpoint alone is likely useless without proper derivation of causation. Lack of in person time for instance may because they are bullied and lack any positive interactions with others. Or simply because they are already depressed they lack the energy and receive no pleasure from it so they don't seek it out.
Trying to put a correlative list into action is likely to be counterproductive like deciding what those paralyzed kids really need is to be thrown from their wheelchair down stairs so they can start walking again.
I also enjoy listening to music while driving or doing the dishes or hanging laundry. I also enjoy going to concerts and experiencing great musicians live.
Both those are all different contexts, different ways of enjoying the music.
To fully immerse myself, dedicated distraction-free listening is required.
And I think it's healthy to break away from the constant distractions of modern life and just listen for an hour or so.
I think this is a matter of correlation doesn't equal causation.