Hey, they "bribe" me to go to work and do my best every day, too.

I see school as a child's job. In your work, can you imagine coming home from your work everyday with a grade as your reward? Then having more work to do once you got home? And when you get chewed out by your boss, your wife/husband punishes you again by grounding you.

Grades are not inherently rewarding for everyone. Wanting it to be so does not make it so. I think that we should view school as the work that children do, and reward realistically. But don't even get me started on all the many things that I think we could be doing differently in our schools.