My eldest boy, just finishing his school's football camp, being one of the biggest and fastest on his team wanted my opinion of what position he ought to go for. I got recruited to a D2 college as a blood linebacker but my love was when I played RB. I told him RB's had the most fun. He couldn't conceive of it. Then I showed him this and converted him to this belief:
https://www.youtube.com/watch?v=h2ai8Fr7BWw