Not only it feels obvious, but it has already been studied many times, with always the same conclusion. But more studies are needed at least until people start

Not only it feels obvious, but it has already been studied many times, with always the same conclusion. But more studies are needed at least until people start caring. Still, aviation is a domain where they care, and they are starting to put in touchscreens in the cockpit, but doing so reasonably. That is: the touchscreens are not necessary to fly the plane and they mostly comes in addition to physical buttons, not to replace them. It is especially important in turbulant conditions.