I'm not sure why dials have stopped clicking. Maybe it had some direct mechanical function at one point, but even if that's no longer necessary, the haptic feed

I'm not sure why dials have stopped clicking. Maybe it had some direct mechanical function at one point, but even if that's no longer necessary, the haptic feedback of the click seems just as important. In fact, even on touchscreens there will often be some sort of audiovisual "click" effect, whether that's an icon lighting up, expanding, or making an audible click noise.