The reality is that kids will develop and will be on the field at some point , this come sooner than later for others-----and kids that good off or lack attention will eventually not be playing if that continues. Most coaches wd say 12 plays for a kid that doesn't know how to line up and put other kids in danger of injury is to many anyhow---- and just FYI in 5th it goes to 7 plays only and then in JH there is no guarantee of playing time ever again--- now the obvious statement is as kiddos improve their playing time will increase.   And let's call it what it is, it's unfair to up the number of plays if some teams have 15 and some have 29 and they are limited to same amount of coaching. So like I said most of this stuff takes care of itself w time