When the grand-kids come to visit, we get them outside as much as possible during the day they have leave their phones inside. We do outdoor activities when they come to visit, we take Micheal out for driving lessons on the dirt back roads, we go target practicing, go to a museum, go on a picnic or just take the dogs out for some fun in the forest.
At meal time the phones are not allowed within reach. After supper we watch a movie, again no phones. When settling down for the evening they can get back on their phones till they pass out...lol I myself don't sit at the computer all day, I do drag the laptop out into the living room when we watch TV, husband likes to find out things about programs we watch. Especially the ones about other countries, cultures and customs or just about a certain actor. In between looking stuff up I still can't sit a just watch TV, I do those Jigidi puzzle or play Mahjong I have installed on the laptop. Or just sit and handsew or do some other project.