zlacker

Actually there is, but it's not cheap, so it doesn't appeal to the average consumer. KNX and DALI are effectively the standard in Europe for large commercial buildings. Green building certifications are requiring lights that turn on and off automatically based on occupancy and ambient conditions, and nothing else even comes close to matching it for this. Remote monitoring and management saves money compared to having someone periodically inspect every light in a building.

They are available for residential installs too, but for a new build you are talking about paying the price of a car (and not a Dacia) on top of what you'd pay for a standard lighting installation, so it's only a thing in luxury homes. For that you end up with truly automatic lighting (controlling lights with your phone is not home automation), variable colour temperature and much higher quality lighting.

But the average consumer doesn't care. A lot of the time they can't even replace a bulb in a set with the same colour temperature.