“Phone addiction” is way too broad. A lot of this criticism of phones appears out of the fact that a phone can be used for a wide range of activities. If I said someone “spent the day doing some research for work, journaling, watching TV, chatting with friends, playing a game, looking at photos from a friend’s trip, then reading local and global news”, then that sounds like a healthy balanced day. But if I described the above as “they were on their phone for 7 hours straight” it sounds unhealthy, even though it’s the same.

It would be more useful to break down more specific problems: anxiety from not checking notifications, mental health from comparing your life to perfect social media, etc. Those can be targeted and fixed.