What exactly are you confused about? Scenario A 1) Toast burns, no fire but lots of smoke 2) Alarm goes off, it's annoying so you wave your hand and turn it off

What exactly are you confused about? Scenario A 1) Toast burns, no fire but lots of smoke 2) Alarm goes off, it's annoying so you wave your hand and turn it off. Problem solved. Scenario B 1) Toast burns, catches fire and your whole kitchen is burning down. 2) You run like hell Why would being able to disable a false alarm easier make it any less safer? Edit: I'll also point out that EVERY single time we cook a steak in a cast iron pan in our apartment the smoke alarm will go off. It's really annoying I have to be the one trying to figure out how to silence the damn thing.