She CAN NOT see the benefit of having wireless bulbs controlled by your phone for this purpose. Apparently this is "too lazy".
TOO LAZY. IS THAT A THING?!
(And in physical life, if one overdoes it with laziness, they can get from obese to pressure ulcers)
And as for diminishing returns, I would argue that it is not. With proper configuration you can automate the entire morning routine; Lights up with your alarm, off when you leave the house, on when you arrive home, off when you go to bed. Just minor conveniences that make life more pleasurable.
Yes. And while that is nice to have, it's by no means as useful as "automatic clothes folding". A dimmer takes like 5 seconds to dim when you put on a movie -- whereas clothes folding takes up to tens of minutes.
Laziness is a crappy mental setup for long term relationships, for parenting, heck even for work (I get some brilliant engineering work comes from laziness but it's a bit different type, and applied only sporadically).
In fact, some mindless work can be a sort of meditation.
I downvoted but just to answer your question: INFINITY. INFINITY LAZY is the goal. Absolutely zero milliseconds worth of mindless toils would be my ideal number in life. That is the spec.