Money, out of state pushes the price tag way up. You'd have to pay out of state tuition and for top 20 schools scholarships are slim. Few get %50+.
Opportunity, not a lot of roster space state champs are a dime a dozen in college.
It's not impossible, my son made it to be a starter for a D1 team, he was good in WA never did much nationally. Had decent grades, just good enough. He called many coaches, got a lucky break, got to school worked into a scholarship, each year they added to it last years were close to full ride.
I asked him what he'd do different in high school. He said learn how to be more effective at studying, and hand-fighting. :D