There is a major problem in youth football leagues that's why some people call it “Daddy Ball” It’s where the coach a.k.a someone’s dad puts their son in a position that they maybe aren’t that great in and blame it on the offensive line and or the fullback for not blocking someone or missing a block.
This problem is a big problem and it affects players who know that they are good at that position and they want to try out for it but the coach doesn’t think that their fit for it. Here’s an example so imagine that you want to try out for running back but the coach thinks his son is the best at that position and doesn’t think anybody else can play that position, So you try out for that position and everyone on the team