Weird. There is little that depresses me more than watching my wife sit at the table for hours a day slowly scrolling Facebook while ignoring me and the kids. We have talked about it and she's tried to reduce it to no avail.
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No phones in the bedroom. No phones at meals. No phones at the park. (Something like that)
Or even a "let's go out for dinner without our phones!"
I also made a little "Phone jail." It is essentially a shoebox on top of the fridge. I announce when I am putting my phone in "jail" as a way to show my kids that I am trying to have a healthy relationship with screens.
My wife and I have both reduced our screen time (though ew aren't perfect.)