You never know when it might be a friend or relative calling from jail or a mental health facility.
I tend to answer even still.
I tend to answer even still.
I tend not to answer, because it is _always_ an unwelcome interruption.
Using an ancient vestigial telecommunications system as your lifeline is your problem.
I think ideally people should use something like xmpp or email.
Longtime friend called me from one of these places yesterday. I answered only out of common courtesy, fully expecting a robocall.