Aside from OP potentially trolling, there are plenty of people for whom the Model 3 is simply NOT the right car in any way, shape, or form.
I have a good friend who recently purchased one (I was a big part of encouraging her) and she's too scared of it to drive it - the touchscreen interface is just too frightening and intimidating compared to the safety of all the knobs and buttons she was used to in her previous German cars. There are plenty of people who simply never transitioned to [naturally] using touchscreen UI. It's one thing when they fumble around with their phones or tablets but putting them in a Model 3, aside from being a subpar experience for them, might be simply too dangerous for the rest of us and they should probably stick to the vehicles they know.
Interesting. Is she going to keep it, I hope? Any car change can take a bit to get used to. ICE to Tesla just takes longer.
I hope you suggested Creep Mode on for her
My wife has not driven it alone yet, she's more nervous about dinging it than not knowing how to do something. But she worries about that some too. Personally, I don't like the new heater controls. Old ones were easier to see and operate while driving.
I worry about timid folks with AutoPilot, I think it works good but you need to stay on top of it and know where it's vulnerable.
I stay away from risky things like Summons and Auto Open/Close Garage door, not worth the risk of a glitch.
I also think people don't realize how many controls are at you finger tips. I keep meaning to count them out but I lose count there are so many. Here goes.
Left Wheel Left Click, Right Click, Left Hold, Right Hold, Click In, Click in Hold, Scroll Up, Scroll Down, Scroll Up Fast, Scroll Down Fast. Times 2. That's 20 Controls/Gestures right there. Now do Left Stem Down, Up, Double Down, Double Up, Button In, Button in Hold, Pull Stem, Push Stem. Times 2. That's 34 controls. And the controls are context sensitive. And sometimes they trigger bringing up the correct UI (like the Wiper Button, I always tap the wiper button to bring up Wiper UI). If you include the horn it's 35 controls on the wheel. And the controls are context sensitive (like Mirror adjust).
Also when clicking any button along the bottom of the screen I like to cup my fingers along the bottom of the screen to steady my hand and use my thumb to click. This steadies the hand and less likely to miss what you want. And you kind don't have to worry about missing in the Y direction when you do it this way. Probably should be some dimples on the that back of the screen to help know where you are without looking.
There are lot of hidden gestures on the screen that make it easier to operate. Like dragging the Apps Tool Bar button up automatically brings up the last app. Dragging the Music Up and down rather than Clicking. I find dragging easier than clicking.
I also try to have AutoPilot (again not for the timid yet IMHO) on in a known reliable situation if I do need to look at the screen for a moment. If I can't, I wait. Most complex things on the UI are not urgent.
There is a lot to the UI and I'm still learning and it will take time for anyone to get comfortable with it. She should know it's a lot for anyone to absorb and it's not her. I find overall it's pretty darn smooth to operate. And yeah the screen has a couple disadvantages but not many.
One other thing I did for common phone numbers is, I made unique entries in my contacts with only ONE phone number attached. Like I have one for my wife. Susie Mobile. Now when I say "Call Susie Mobile" it doesn't prompt for which phone number to click and it dials it right away without touching the screen. So much better.
Sorry for the ramble.