As the father of two screen addicts: If this is a problem for you, parents, you're doing it wrong.
In my house the rule is: not making face/eye contact and putting the headphones down when I address them means losing your device for at least a day. No exceptions.
Giving me a hard time about this means losing them for a week. Again, no exceptions.
Actually getting angry at me about this means being blocked from the internet for a month. No exceptions.
I'll block all their devices at the source (modem) and remove any and all wiring between their computer and consoles for good measure. I know this is a rather futile gesture to "those in the know", but the symbolic meaning behind it and the visual effect is pretty spectacular.
Needless to say this hardly ever happened after the first time.
The message behind all this is that I'm the one feeding and housing them. There is NO ONE and NOTHING in the world that supersedes me. Most definitely not a device.
Really other parents. My main problem with my kids is YOUR kids. Seems to me that when people decided to stop beating their kids they also decided that diciplining (<that isn't a word, I know, but hey, sue me...) should be thrown overboard as a whole. That is just stupid. Really really stupid.
If we don't put the boundaries down for them,, at a young age, they grow up thinking there are none. With all kinds of undesirable consequences down the road..
So, 'man up' and deal with your fragging kids. Before someone else does (like a judge).
Note: I'm ALSO a screen-addict and Gamer. Leading by example I'll always put my device down, my headphone off, my games on pause whenever THEY come to me. This is IMHO paramount to the aforementioned disciplinary actions.