Alexa and other home technology - pros and cons

I will probably be pelted with tomatoes again soon, but a guest bathroom in a smart home should work completely without switches. Because the guests have nothing to press there.

Are they at least allowed to choose the time when to start the toilet flush process, or does the software take over here as well?

I will probably be pelted with tomatoes again soon, but a guest bathroom in a smart home should be completely without switches. Because guests have nothing to press there. The light should turn on when you are there and off when you leave, that's it.

*Tomato*

I tried it in the guest WC, but I will still have a switch (just not at the entrance). The towel warmer (electric) somehow needs to be switchable and the window can only be opened motorized.
I simply lack the appropriate sensors to control this reliably. Any tips?

*Tomate*

I tried it in the guest WC, but I will still have a switch (just not at the entrance). The towel radiator (electric) has to be switchable somehow, and the window can only be opened motorized.
I just lack the sensible sensors to reliably control this. Any tips?

We have no switches in the guest WC. The skylight turns on during the day if needed. In the evening and morning, the mirror light is added. At night, only dimmed light without the mirror. The towel radiator turns on after about 1-1.5 minutes of showering. That’s enough (thanks to 60 degrees supply temperature) for warm towels after showering. The controlled residential ventilation also switches off while showering (so the heat stays) and switches to maximum level after showering for fast air exchange. Everything turns off automatically again. Works perfectly. Some tinkering and experimenting was necessary though.

Just like with Steffen, it is quite elegantly solved.

I also don't see a problem with the light, that's easy.
Which sensor triggers the heating? An application sensor at the shower inlet? Which one?

The windows in the room can only be opened electrically. If a guest uses the toilet and feels the need to ventilate, they have to be able to trigger this somehow. I haven't found a sniffing device for the drain yet :P

Then please also switches that everyone "understands". My brother-in-law also has some kind of smart home for his lamps in his house, but also with switches.

That was not about smart, but about switches. In my case, they are allowed to have an arrow pointing up and down.