I'm not a big sports fan, but high school football is among the most popular sport in the US and Canada
I love sports. But football dose not register with me until it's college or above. Which states is high school football the most popular in? 
I'm not really sure, but in the early 20th century, many college and high school teams played against each other!
That's crazy. I can't imagine any high school team beating even a terrible college team. 
Apparently other high school traditions like pep rallies, marching bands, mascots and even homecomings are mirrored from college football, so they've got a lot in common.
I figured just on a smaller scale. I'm from Texas and high school football is huge here.
Texas and Massachusettes actually use NCAA playing rules - they are the only two states that do this for their high schools.
How did I not know that. You are a world of knowledge!
talented enough.
In the 2000s and beyond, there has been growing concern about safety and long-term brain health, both regarding the occasional concussion as well as the steady diet of lesser hits to the head.
Rules.
The National Federation of State High School Associations (NFHS) establishes the rules of high school football in the United States.
As of the next high school season of 2019, Texas is the only state that does not base its football rules on the NFHS rule set, instead using
the United States. The most popular forms of the game are professional and college football, with the other major levels being high school and youth football. , nearly 1.1 million high school athletes and 70,000 college athletes play the sport in the United States annually, almost all of them men, with a few exceptions. The National Football League, the most popular American football league, has the highest average attendance of any professional sports league in the world; its championship game, the Super Bowl, ranks among the most-