I've seen a few threads recently where posters have mentioned that their DC's general behaviour was improved by limiting their time on iPads, consoles, TV etc.
I have 4 DSCs aged between 10-16 who are all reasonably well-behaved, challenging at times but good kids overall. They go out at some point every weekend so they're not stuck at home all day but whilst indoors (both here and at their DM's) all of them are glued to their electronics literally unless eating/sleeping/showering. Is it really all that bad for them?