Let me repeat it again and I'll stick to small words.
Even if the school wants to use the Volume Purchase Program which requires that each student has a separate ID under his/her control there is nothing to prevent parents of students under 12 (or even 18 if the parents wish) from setting up an ID the parents control on the child's behalf. THAT id would be used for redeeming the school provided codes and would belong to the child's authorized legal representative until such time as said party wishes to turn control over to the child. Problem for the school is solved. And zero need for anyone to limit what they do to any age audience.
Thank you for restating -- I understand your point much better now. Oh, no reason to be an ass about it either.
Doesn't change the fact that Apple's policy is for user to be 13 to create and *use* the account (despite other ways around it), and thus makes your scenario and edge case -- an edge case that makes it a remote possibility for publishers to want to put products into the market to fill that niche.