And post on HN? :)
On the other hand, yes, absolutely put the phone down at the dinner table and engage with those who are present. No questions there.
Finally, my kids are getting to the age where their friends have phones and use them to communicate. My kids don't yet have that and are reliant on me to text parents, which is a lot of friction for everyone involved. Their summer is very boring because they hardly get to see their friends. So, sure, fight boredom by entertaining yourself, but that's a lonely existence.