> A Fridge for example makes a loud beep if you forgot to close the door and the temperature is too high. But forget the door and leave your house, and you won'

> A Fridge for example makes a loud beep if you forgot to close the door and the temperature is too high. But forget the door and leave your house, and you won't hear the beep. A push notification would solve it. And expect the user to return to the house in the middle of work to close the fridge door? Why can't the fridge close its own door if it is so smart? And if it can, then why does it still need Wi-Fi?