I have a phone or tablet welded to my hand virtually all of the time, being a young Millennial and that, yet I really wanted something with physical buttons for DCC, for the simple reason that it's easier to use without looking at the screen. Likewise I find my car stereo annyoing, being touch screen, as I have to look at it to do most things (those that can't be done via the physical buttons on the steering wheel at least).
It's not a fear of, or reticence toward, touch screen devices, just what I personally think is best suited to the purpose. I use JMRI with my SmartControl and have WiThrottle, so it's an option should I want additional control, but I certainly like the tactility of real buttons and knobs. Matron.