LOL! You actually believe all fridges work exactly like yours? You believe everyone's laundry is installed within hearing range exactly like yours? Some people even have washers & dryers without audio alerts. The laundry notifications allow us to get 6+ loads done in 1 day rather than 2.

There are millions of households in just the U.S. and nearly every single household is very different than yours. You need to get out more and stop admiring your own navel.