I doubt it has to do with playing for a championship - some dudes just want to play the game. Like it or not there are guys who don't love football, they just know they can't beat the earning potential doing anything else, so they do it while they can to cash in. But Anderson seems like a guy who loves the game.Ja’Marr Chase having a great rookie year isn’t great for CFB, at least not for teams that likely won’t be in line for a championship. Will Anderson has shown the NFL all they need to see, but he can play for a championship next year at Alabama. If he were at most any other program, I could see him sitting out next year.
I doubt we'll see a mass of players sitting the entire season - lots of guys simply love playing the game.