Under the advanced section Troubleshooting and Erase Data are next to each other. Given how us humans fat finger things.
I would like to see it with:
Show rich Icons.
The bigger box for demo mode almost guarantees no one will inadvertently press the erase data button. True since it only removes it from the device it would be a major inconvenience but nothing else. And true there is a confirmation box.
But we all know how click happy people are they never read anything. But I also bet they do it once and if they are really hard headed twice but I don't think they will mistake it a 3rd time.
Just food for your thought.