Moving up kids is not the answer. Some years are just bad years for teams. Parents want their kids moved up so they can say my son plays varsity in 9th grade. Better to sacrifice a varsity yr and keep younger kids playing together. Moving up for girls is a whole different thing. Girls game is a different game all together in the physical sense. The growth spurts boys have between frosh soph yrs to jr sr are usually pretty big. Why put a younger player at risk. My opinion is younger players get keyed up on when playing up as well. Big target for the opposing team.