You're right.
And what you may learn as a child could easily take you through high school in which easily prepares you for collage, or just some street fights and who knows; maybe pro.
I started in the 6th grade and won my 8th grade Wrestling Championship, I was just as young as these guys when I started and my uncle was the high school wrestling coach as well.
http://youtu.be/iF4T3hWa2bY