[macintux]

I taught a "computers 101" lab with several adult learners many years ago, and I had one student walk out when I told him I simply couldn't teach him exactly what to do in every situation.

I felt badly, and I'd probably with 20 more years under my belt be able to help a bit more now, but it's still the same quandry: you can't expect to use any computer/mobile device without experimenting to figure out the way to do something, and there are a lot of adults (I assume some children too) who aren't willing to do the wrong thing.