Smart home without switches? P.Hue, Home Assistant, Homematic wired IP

And if a presence detector in the "stairwell" dies at night, you might fall down the stairs in case of doubt, because there is no switch... I wouldn’t do something like that completely without a switch/button for the really important light sources. In commercial spaces, that would probably not even be legal, without any manual fallback level.

(...)
Sorry, but I find the concept without physical switches terrible. If I hadn’t been warned about this very firmly beforehand, I would consider it a defect. How are children supposed to cope with something like this?

But isn’t that exactly what the KNX enthusiasts always preach here? That a real smart home gets along without any switches and buttons for lights, blinds, etc.? Because everything runs via sensors. Only then does it become really interesting price-wise, because you save the conventional fallback level.

I have almost no switches. Besides, there is also the [Bedienoberfläche] on mobile devices.

As I already said, you can do such technical gadgets very well in your own apartment, but in a holiday apartment? Every guest has different habits that the smart home does not know. Who wants to bother with strange smart home installations on vacation? Switches are a must. Beyond that, gadgets with colors, scenes, etc. can certainly be done additionally via a panel. That's also pretty cool.

But if I want to go to the bathroom at night without turning on the light, should I first fumble around in the smart home app, or how does the intelligent smart home know something like that?

Well, switches are a must if you have rooms with one entrance and exit, but if you only have one big room, switches don't make much sense, rather controlling areas from a central point, and that's just how it is with us ;)

Besides, I think you have to keep up with the times, the guestbook with access data to the apartment is now only sent by message anyway, so why not include a link to the operation of the electrical system there as well?

It's quite smart and up to date ;)

but if you only have one huge room, switches don’t make much sense

Okok. With many children I am simply not your target group ;)