I had a conversation about this in NJ with a coach last week

He is a teacher/coach, and his brother is a big college OC. He gets a lot of his schemes and plays from his brother and then simplifies for small high school stuff.
He said most of the small high schools already play this way because they have so few players. They can't afford much contact in practice, and a lot of players go both ways.
The big magnet football schools are in the minority in terms of overall numbers.
The coach went to a big school and was like from 5th grade on he feels like all he practiced was hitting, but the game is a lot different now. With all these option/spread offenses he said its more like a lacrosse practice, which is ironically why he has such a small team as lacrosse tends to go year round and have a lot of his players.