Earlier quoted context omitted.
German colleges are free but the kids who are chosen to go to them are often selected by the third grade. Could you explain more?
The German school system divides students into three distinct groups starting in the fourth grade, meaning the decision is made in the third [1]. The three divisions are 1. Hauptschule (central, lower-level school) 2. Realschule (technical school) and 3. Gymnasium (uni-prep school). Once placed into one of these three tracks, it's very difficult to switch between them - more so in the later years, since they each hav…
And while switching between the tracks indeed is difficult, it is possible to either gain the Abitur after going to one of the "lower" levels by taking additional years of schooling, or start at uni (especially universities of applied science) without it all. The article you linked gives the (to me surprising, I wouldn't have expected the numbers to be that high) statistic of
> The most traditional route has always been graduation from a Gymnasium with the Abitur; however this has become less common over time. As of 2008, less than half of university freshmen in some German states had graduated from a Gymnasium. Even in Bavaria (a state with a policy of strengthening the Gymnasium) only 56 percent of freshmen had graduated from a Gymnasium.
That said, this early split certainly is a heavily debated topic and in many cases likely is not optimal.