We’re dealing with this right now. Our 10th grader is both a cheerleader & a vocal music student, was already worried about how yelling might affect her singing voice, and just had the vocal coach tell her it’s about the worst thing she could be doing for it…
Not to downplay that this happens, but it (cheerleading, football, sports in general) sure is a completely different milieu from when I was in school in TX:
(Maybe it’s neither here nor there that this particular football team is 1-6 this season; last week’s score was 59-0 
)
It’s a very big school, but there’s no flag team nor dance drill team (which, come to think of it, would’ve been a perfect alternative); the band (or at least part of it) shows up for games but does not actually march… 
Thirty-mumble-something years ago (again given that context in TX), I would never have expected to be in a position where anyone would refer to me as the “cheer dad” 
(Edit for clarification. Maybe.)
