Just give everyone A's and then everyone will get scholarships to college with 4.0 GPAs. I've thought a lot about this, and I'm sure there are no flaws in this plan.
For the student, it would significantly reduce stress, and so if a student was so inclined to learn, they would likely learn more/better. For the the non-inclined to learn student, yeah, not good, but then again, the non-inclined-to-learn learner probably is going to do well anyway.
What i do think it would do is cut significantly down on the "i hate school" emotion, and "i hate learning" action. Kids probably would like learning more. And to me, anything you can do to get people to enjoy learning, even just a little bit, is a win.