>>216449885
They help save lives (no matter what the thirdies think). You won't notice smoke while sleeping until it's too late. It's one of the most common causes of death in fires.
Also, it gives both you, everyone in the house and anyone nearby a warning that something is on fire.
It's not to "reduce fires". It's to improve response time, alertness and raising the chance of you or someone else putting the fire out before it spreads.

Simple scenario.
>you upstairs
>something causes a fire downstairs
>furniture, curtains or whatever catches fire
>you have no idea
>fire alarm detects it in seconds, the moment smoke starts rising
>no smoke detector, you have no idea a fire is happening until everything is on fire
Simple.
>"oooh but I have a brick house lol"
Is all your furniture etc also made of brick?
A home is full of flammable materials..
But I guess thirdies don't care as long as the basic structure of the building is still standing.
They look at pic and go, nice. My house is fine. Quality bricks.