Minnesota and South Dakota allow eighth graders now, and if it were handled correctly, I wouldn't have a serious problem with it. But, what I would prefer is to see eighth graders brought up only to fill a need. For example, if a team did not have a varsity 103, you could bring up an 8th grader to fill that spot. Otherwise, these kids stay in the middle school program.
Which, of course, begs the other question; there are schools that don't have middle school programs — how would we address that?