Earlier quoted context omitted.
Read, then reread, and still do not understand your point. Are you saying that in Russia, since the education was free that the goal of the textbooks was to make it hard to want to stay in school, if so, to me, seems like it’s unlikely, but possible. Putting aside non-Russian textbooks, what are you saying the intended reasoning of the textbook form was as it relates to Russian culture?
I think the reasoning is that the incentives are flipped. Capitalist school gets more money the more you stick around. Communist school spends more money the more you stick around. One has a perverse incentive to get as many people to pass as possible. The other has a perverse incentive to get as many people to fail as possible.
Further, reasoning that American schools get money might hold true for tuition based schools, but my understanding is that large percentage of pre-university mathematics courses are taught for free. So again, doesn’t make sense to me, because if that was the case, all schools would charge and majority of students would finish university to maximize the profits, and again, this does not match my understanding of how things work.