I have several friends considering holding their kids back and repeating 8th grade. They are saying it’s due to covid educational gaps but it is not. Having played and coaches div 1 athletics and then worked for colleges I gently try to tell them that it really won’t matter. The top 1% of kids getting scholarships are just better. A year won’t matter. The time to maybe take a year would be at the end of high school, if you don’t like the opportunities available to you or feel like X area of your game/body could develop. Gap years after high school are common and are a better use of that extra year. Take 2 classes at a JC, train with a high level u19 club team and hone in on what you want. As long as you don’t enroll full time anywhere you maintain your 4 year eligibility.
But the extra year of 8th grade won’t matter. I’ve known lots of families do it and it “worked” for 2 of them. Would they have gone div 1 on lots of money anyways? Probably. Maybe it the kid is all for it and doesn’t mind it’s whatever. If it is what you think it best for your kid, have at it. It’s like everything else with sports: a gamble with pros and cons.
But the extra year of 8th grade won’t matter. I’ve known lots of families do it and it “worked” for 2 of them. Would they have gone div 1 on lots of money anyways? Probably. Maybe it the kid is all for it and doesn’t mind it’s whatever. If it is what you think it best for your kid, have at it. It’s like everything else with sports: a gamble with pros and cons.