I’m guessing you haven’t tried to do it. I can spend twenty minutes trying to read something my father-in-law needs help with over video chat. From his “and how do I turn the back camera on?”, to my “no back a bit and left. The other left”, and the classic “you turned off your video, let me call you back” because it’s faster than guiding him on how to turn it on while he swears that he didn’t press anything.