Why not just give everyone an A? Doesn't get more even than that. Life will sort everything out very quickly after high school. Once they're out of high school, life will teach them that they don't know shit, either at a college or university they are not prepared to attend, nor capable of succeeding, which leads to a menial job you'll have for the rest of your life, or just skipping the college thing and going directly to work at a menial job for the rest of your life.