Technology

You're still not getting it. A proper smart home will know when you want certain things. You're going into the bathroom to get ready for work, the lights are programmed for full intensity. In the middle of your sleep period, they go to the pre-programmed dim mode. And most rooms will be used in certain ways, as defined by you. If you're in the living room and turn the TV on the lights dim, because that's what you told it to do. You have an EV to charge, it knows how much time your EV needs to charge and how much electricity costs you during certain periods. So you plug the car in and it charges it when you want it to so you are ready when it's time to go to work. This is where smart homes start to shine - they do all the usual things you would do if they weren't so complicated and all the default things you would normally do, and you just live your life and deal with the exceptions as needed. If you use a room 3 different ways, you set up those 3 different ways and make the typical one your default. Now you're back to exceptions. And the more rules you have to how you do things, the better it works for you. And most people have a preferred way they want things, modified by how much it takes to get there and other circumstances. With the right sensors, timers, etc., most of those can be accounted for.

So maybe you start with lights turning on when you enter the room, but if you do it right you get to the point where you barely think about lights at all - they're just how you want them to be. Why would you not want that? However little effort lights take to manage, why do you want them to take any effort at all? And there are many more things than lights, some of which just make life easier, or more comfortable, or cheaper, all of which are good reasons to want this.