Most recreational instructors are still teaching primary in the mouth, with AAS clipped off on your chest. Personally, I would like to see novices taught primary donate at the beginning though; it works well, and in the event of them being paired up with a buddy with extra cylinders and regs, they know which one to take.
"they know which one to take."
Are you suggesting teaching a novice to TAKE a primary?
"in the event of them being paired up with a buddy with extra cylinders and regs"
When would this happen with a novice?