Both points, being A: Controlling the population when they are already adult and B: Controlling the population by raising them "correct", are equally valid, though. Imo
I never understood why they would make the people, who had to ride this, start at the bottom. Just make the start at the top so they don't have the most agonising roller coaster ascending of their lives. wth
I find this unbelievably funny for some reason. Thank you!