At least you have a new excuse for holding back your kid in middle school now, during what is already the the most embarrassing stage of their lives, puberty. “The corona made us do it!”
If you are going to do it, do it in kindergarten please. Save your kids the hit it will take on them socially when you do it to them in 7th and 8th grade. Fact- using Sept 1 as the cutoff, ALL teams have holdbacks. This topic has been beaten down more times and just won’t go to rest. Stop caring so much because it won’t matter later and if you use it an an excuse for your own kid not excelling, then plan on your kid not playing. Coaches don’t care what you think.