We originally just used keyboards, the mouse was introduced as the technology evolved. The mouse didn't display the keyboard. The same thing is happening now

We originally just used keyboards, the mouse was introduced as the technology evolved. The mouse didn't display the keyboard. The same thing is happening now and touchscreens will not display the keyboard or mouse, they will compliment them just as the mouse did the keyboard. "Serious work" is determined by the value it provides, not the way it's produced.