Interesting you should say that. I found a Substack post earlier today along those lines [0].
I almost never take my phone with me, especially when with my wife and son, as they always have theirs with them, although with elderly parents not in the best of health I really should take it more.
But it's something I see a lot these days, in fact, the latest Vodafone ad in the uk has a bunch of lads sitting outside a pub and one is laughing at something on his phone. There's also a betting ad where the guy is making bets on his phone (presumably) while in a restaurant with others!
I find this normalized behaviour somewhat concerning for the future.
[0] - https://abysspostcard.substack.com/p/party-like-it-is-1975