Why grades shouldn't exist!

Grades have been in school for a long time. The reason grades shouldn't exist is because first of all teachers molest kids and if they say "no" then the teacher can mess with the students grade. If we didn't have grades then the students can have balanced power over teachers. Grades have also been proven to discourage students from learning because if they feel good about the work they have done and get an F then they feel discouraged and therefore they don't want to learn. Schools were made to learn and also encourage students to learn and get better jobs. It also doesn't encourage students to learn when the teacher is saying "your going to fail". The only reason students study is to get a good grade, after they have gotten that grade they already forget what they learned. My final reason is plain simple you can't grade intelligence.