[greedo]

My dad once told me that just because he had a phone (landline), that he was under no obligation to answer it. I thought it was funny at the time but I wish he was still around for me to tell him he was right.

When iPhones became common, my ex-wife would get upset when I wouldn't reply to a text message. Sometimes I was busy and missed the notification, or couldn't answer (like in a meeting, driving, etc). Or I knew that the message would be better answered in person.

The social expectations part is hard to overcome. Societal contracts, whether implicit or explicit are very hard to ignore.