Similarly in Wisconsin, and possibly any state with a flagship public university. Even if the point system isn't known, everybody gets into one of the Wisconsin system colleges. But everybody doesn't go to those colleges.

First, the number of positions is limited, though I don't know how the limit is set or if it actually fills up.

Second, the top kids at the top high schools in the state go to the Ivy's, or other selective private colleges, even if they could get into UW. This leaves positions open at UW for a wider variety of students.

There is also a third tier system, consisting of community colleges that feed into the university system or provide shorter term job training.

Disclaimer: One kid is at the flagship college, the other is in high school.