That's remarkable. When I show my Model S at EV events, I show people how to adjust the seats and mirrors, climb in next to them, and tell them to touch the brake and the shifter and we are off. That is literally all there is to it. After that, as I tell them, it is "just like any other car." Turn signals, brakes, wipers -- everything is exactly where you expect. The temperature control is readily seen and adjusted if needed (but not on a short demo drive). I do acknowledge that the media center takes a bit of learning. So, I can't imagine what is so complicated about your friend's Model 3.....
My big fear about the new Model S with its yoke steering and lack of stalks is that it will no longer be "just like any other car."