Thanks all! The "spark" for my question came from building survival kits with our Scouts. Matches, lighters, ferro rods, mag sticks, magnifying glasses, steele wool .... we teach them all and tell them to always try to carry at least 2 or 3 methods on them.(After thoroughly teaching them fire building skills first, of course, so they're ready for fire lighting.) We want to teach them the easiest, most reliable method first. Once we've covered the 2 or 3 components they carry in their kits, what would you move onto next?
Your approach sounds good to me. After that, you teach the primitive methods that you mentioned in the original post.
Here's my problem. If the primitive methods are taught with anything other than what's in the wild, then I don't see the point if we bring along supplies in order to perform the primitive methods. At that point, the primitive methods become entertainment mostly, and not true survival training. It's important for the Scouts to see that the primitive methods are extremely difficult, and practically impossible on a large percentage of the earth's surface.
After a failed attempt at primitive fire starting, it would be good to teach AGAIN how always to carry supplies for the easier methods. One example is tiny ferro rods ($.49) scattered throughout clothing and jewelery. You may laugh, but I've had a cocky kid tell me that all he needs to start a fire in the wild is a knife. That's a dangerous mindset.
I bet somebody is reading this thinking, well, simply the knowledge of the primitive methods is important. My response is if you're going to make the trek out there to the woods, then natural materials should be used. Otherwise, the Scouts can just read a book or watch the 359 videos on Youtube where people are faking the primitive methods just the same. I just saw a guy on Youtube fake a primitive method by using jute twine, a large 2x4 from Home Depot, a shoestring, a nice sharp knife and other stuff. The video received all thumbs up. Well, let's see. If I used a cotton ball, a ferro rod and a scraper, then I would be using less pre-made material than him.
On the other hand, if you can show Scouts how to use only materials from the wild to perform a primitive method, then that makes sense to me. The only materials that should be used are materials that will absolutely be carried 100% of the time. I guess a shoe string is OK maybe. For me, the purpose of the primitive methods are to answer the question, "How do I start a fire out here if I have on my birthday suit and nothing else?" I'm sorry if I sound harsh, but I believe a survival situation is way harsher.