From everything I've heard and read, the earlier people are introduced to religion, they more likely they are to be religious. However, I don't have any studies to back this up, so that could be completely false. However, it seems reasonable to me, and if we were to grant that as the case, then, what would determine what religion those people are introduced to?
I don't know that religions need to be "broken free" of, as there are very religious people that are able to critically think and engage in meaningful intellectual dialogue quite easily. There are also rabidly insane people from every religion or belief system (or lack thereof) that disregard the opinions of others wholesale when they disagree with their own.
All that is aside of the fact that believing the earth is 6000 years old indicates a willful ignorance of the world around you, which is potentially dangerous given how our actions are influencing the planet. But meh. He's an athlete, and he apparently may have been joking. So long as he doesn't try to force his beliefs on me (e.g. with voting for stuff like gay marriage bans) I won't care more than to comment on an internet forum thread about him.