Test scores and college-acceptance rates seem like odd metrics for judging the success of K-12 education - surely the goal is loftier than just slotting kids in

Test scores and college-acceptance rates seem like odd metrics for judging the success of K-12 education - surely the goal is loftier than just slotting kids into a college. You can optimize a process for "winning" college admissions much more easily than you can optimize a process for developing a basic intellectual toolkit and the organizational skills and self-discipline required to apply it. Maybe charter schools haven't been widely operating long enough for this, but is anyone aware of any studies - either completed or in progress - that compare charter/standard public/private school student life-outcomes on a longer time-scale?