This absolutely happens in Tulsa. I was already 6'1, 220lbs at age 13, multiple HCs that my mom knew, including one mentioned in this thread, asked us to move into their district so I could play for them and offered to assist in doing so.
We didn't because I wanted to play basketball more. Also, I was bad at football, only thing going for me was my size.
Damn! You were a hoss at 13! I blew away in the wind until I started lifting weights at 20. I see how big those guys are playing each snap and I don't think I could survive a single play in the trenches. Add 3 years and 100 pounds and that's how big they are today... Unbelievable.