I keep a Kelly Kettle in my SUV and one in my teardrop trailer. If I run out of JetBoil fuel on a camp trip it'll be handy. If I'm stranded in the car somewhere, it'll be very handy.

The Vargo Hexagon is now in my backpack for day hikes. Weighs hardly anything and is an efficient means of building a little fire with little found fuel and it will hold a Titanium mug (which I also routinely carry) or small pot. I won't carry a fuel canister on a day hike. In winter, I might carry a thermos of hot coffee or cocoa.

Makes perfect sense to me.

Am also now in the habit of carrying a Bic lighter, matches and firesteel.

Just in case.