&gt;Try installing new lights and switches in your house sometimes and come back and ask that again.<p>I&#x27;ve installed plenty of lights and light switches... I still don&#x27;t see the problem. Either you have the requisite knowledge to do these things, or you hire an electrician who does. Furthermore, no fancy IoT device is going to remove the basic requirement for running wires to the light socket and (semi-optionally) from the socket to a switch. This is fine because it only has to be done once when a space is built.<p>I would much rather have simple and reliable wiring done once when my house is built than have to buy new light switches every two years because my old light switch is obsolete.<p>&gt;Not to mention, why do we want 120&#x2F;240VAC to the controls rather than low voltage DC (less shock risk, less fire hazard, etc.)?<p>Oh come on. the shock&#x2F;fire risk of a properly installed light switch is indistinguishable from zero.