I grew up in Ky and they have always allowed 7-8th graders to participate in any/all sports (maybe not football? ) that the adminstration/coaches deemed appriopriate. This even includes boys (OJ Mayo started varsity in the 7th grade , maybe 6th ?) .I see several Ky 8th graders playing jv-varsity BB every year , not just the super athelet like OJ. Now I'm Ohio and their rules are extremely strict. Example: 7 total football games each year for 7-8th graders. And no 7-8th graders can play in any varsity sport , girls or boys.
The reason this rule should have some flexibility added is that the smallest schools struggle with numbers. My kid will be attending a very small private school. At their 1st tryout they had 9-10 girls come out . I was told they had to persuade some girls who had never played (even rec ball) to come out for the team. But the 7-8th grade have a few girls who have played travel ball and could play circles around the newbies on the HS team. So does your state allow Jr high girls to play JV or varsity ? MD