Elderly vs Touchscreens
I am just a few weeks short of my 80th birthday and have noticed a problem using the touch screen on my iPhone. As we age, the circulation in our extremities is reduced. That's why elderly people always seem to have cold hands. As a result, the touchscreen keyboards do not respond as quickly as when a younger person uses them.
This is something to consider when we "old folks" use the "newfangled" devices:-)