The issue with concussion awareness is not at the pro level or even really at the college level, it's the kids in pee-wee, junior high, and high school who look to the pros and college level for guidance. There they will see poor technique (hits instead of tackles), inadequate equipment (especially for developing heads/brains), and players "walking it off" and "toughing it out" when they are clearly injured. Combine all of this with typically underfunded programs (poorly trained coaches, non-existent medical staff, inadequate equipment, etc) and you're setting these kids up for disaster before they even have the chance of making the big money.
There's a reason most NFL "stars" don't let their kids play...