As a legally blind person touchscreens or touch buttons on every device are the bane of my existence.
The iPhone is very accessible, Android phones are reasonably accessible to the blind. But hardly anyone makes the touch screen on an appliance screen reader accessible.(apart from very expensive products made especially for the blind).
Why does the espresso machine at work need touch sensitive buttons? I've learned that I need the second button from the top. But since I can't touch the top of the machine to feel where the buttons are without instantly activating any other button on the way I find it very difficult to make a cup of coffee .
Touch screens are worse. and when some company does make them accessible for legal reasons (ATMs for example), they do such a shitty job you may as well ask for sighted assistance anyway.