Clearly you don't get it. Scenes.. timing.. Activity based. Location based etc. IR is useless In a lot of circumstances.
I have a set of steps between floors that is fairly steep and narrow. When I enter the steps area, the light comes on. When I leave the steps area, it goes off a time later. I touch nothing. Pretty handy in the middle of the night. Can also manually control the light from my iPhone or via any number of other means.