Speaking of old habits, remember too that there's a rich history of how to do mixing with live sound, where time and immediacy are
of the essence. The modern studio takes some of the pressure off, because you have as much time as you want. But, I believe we're often at our best when working without a net, taking chances, and slamming controls in fits of inspiration.
(As a side note this is the beauty of Mix Recall. Take all the chances you want, then listen back the next day and decided which "performance" really did justice to the music.)
For me, mixing with a mouse is like entering MIDI notes in step time. You can do it, but I'm not sure it's the best way to have fun. And I'm in this to have fun, because if I'm having fun, it increases the odds of the listeners having fun...another lesson from live performance

.
So I can relate to mixers. I see them as
instruments...and if anyone has ever seen Dr. Walker (Ingmar Koch) live, then you
know a mixer can be an instrument.