First, there is a small bit of power going over traditional copper lines, and you are able to dial 911 even if the power goes out or the internet goes down.
Second it's a sociological mechanism. People in modern times are incredibly entitled, so saying "I didn't want to answer your call because I was busy" makes them irrationally angry.
But if you give out your landline you can just say you weren't at home.
A few things.
First, there is a small bit of power going over traditional copper lines, and you are able to dial 911 even if the power goes out or the internet goes down.
Second it's a sociological mechanism. People in modern times are incredibly entitled, so saying "I didn't want to answer your call because I was busy" makes them irrationally angry.
But if you give out your landline you can just say you weren't at home.