I will be doing that task with my daughter soon.
All your points are good, and for the large flat place I plan on a limited access parking lot.
The other part of my plan is using a 93 f250 truck with a first gear so low I see failure to grasp the concept smoothly improbable, passing test starting in second as I usually due as it tops out in first gear at 10 mph max,(best guess as I only use first for plowing, I don’t know about that shortening clutch life but it has held so far for 16 years and 36,000 miles).
After that practice practice practice and I expect a few engine kills due to failure to engage the clutch at stops.
Perhaps I need to be taught better as I rarely downshift and will not stress that so much.
I consider the whole exercise as a necessary teaching just in case sometime in life it is needed, not really expecting she will like a stick shift or ever buy a car that has one, but I have been surprised before, could see her loving an MG.