Weird, I work and get bread and I've got one, and my family members all have one. And most forms of communication need at least two people last I checked.

Is it our primary form of communication? No. But if cell towers go down we're all within range of sending a text. If I lived in a city I'd definitely have one. It's a stupid cheap insurance policy. But by all means, depend fully on your cell provider for communication.

Here's something fun for you: Look up Kessler syndrome. If we were to lose control of our satellite networks for 24 hours, there's a 30% chance it causes a chain reaction to where we lose the ability to even launch satellites without first cleaning up all the space debris. That time window shrinks with each new launch.