Some family members don't know how to put their phones down when visiting family members. For example, my nieces are very bad about this, as are their parents. Whenever they would come to visit my Mother in law, most of them would have their noses buried in their phones. My Mother inlaw complained bitterly about it. I used to be guilty too, but after seeing how hurtful it was (and rude), my phone stays in my pocket, or upside down on the table.
At another family gathering, my cousin's husband chides anyone for having their phones out. I pointed out that I use the camera, and that appeased him. He's right though, it's rude, and anyone who buries their nose into their phone is missing out on interacting with family and friends.
I once read a story once where a group of friends gathered once a month at a restaurant to catch up and reconnect. They discovered that they were all guilty of looking at their phones rather than interacting with each other. So they made a pact: they stacked their phones in the middle of the table, and the first person to reach for their phone was then obligated to pick up the entire check!