Clearly, Apple are entirely responsible for the design of their products.
As the iPad doesn’t have a physical battery on/off switch, a method to trigger a forced-restart had to be devised using the available physical pushbuttons. The sequence and buttons that must be used differ between devices; those that have a physical Home button differ from those that don’t. This difference in button-sequence is consistent for iPad and iPhone - with and without a physical Home button.
The best advice that can be offered to address your issue is to initially familiarise the individual, with whom you are attempting to provide help via telephone, with the three physical buttons. Perhaps assign the physical buttons a number or letter (1, 2 and 3 - or A, B and C) in the sequence that the buttons must be pressed. As such, you can completely forget the names of the buttons and their normal functions.
While the diagram above is visual - it is intended as an aid to explain relative button positions. The revised process…:
Press and quickly release button #1 - then press and quickly release button #2 - then press and hold button #3 until your iPad restarts. Release button #3 when the Apple logo appears.
