[lawn]

Because of muscle memory?

And well-designed physical buttons have identifiable marks or features on them to help you find the right one purely by touch. The input type (button, dial, lever) shape (round, square edges to the right), dots on the button and location (I change songs in the top left).

[malfist]

Not on a touchscreen you don't. Even with electric shocks as GP suggested.

[lawn]

Yeah sorry, I was thinking of regular physical buttons.