Automating your home when you live alone is so much easier than if you have a family. A lot of unforeseen event chains happen. Tonight for example my significant other turned her phone to flight mode for the night like she always does, but she woke up at 3am and turned it on which the home interpreted as she arriving at home. And because the sun was below the horizon it turned on all the lights in the whole flat which woke up everyone :D.
It's a quick fix in the flow logic, just don't change the state from
home when someone arrives, but every time some of those bugs show up it shutters the trust in any of the automatons at home.