Kinda yes/Kinda no.
Look some in the NRL have huge brains. Heck Justin Olam has a degree in applied Physics!!
Others, well they are strugglers.
I had a friend, he was asked to pick his elective subjects at School. i.e. "do you want to do Woodwork, Industrial design and PE" or "Art, Music and drama".. He handed his form to his mother and asked her to fill it out.
Some people just have no drive or will to push for what they want.
Are you serious about Olam or taking the piss?