If you've ever tried something new, something that is not necessarily within the scope of most people's experience, I'm sure you've been told that you're crazy. Which is shortly followed by "you're going to get hurt", "it's not good for you", "you're going to put your eye out", etc. I know that's what I was told over 40 years ago when I started training in the martial arts. I heard the same thing when I started training with Russian Kettlebells back in 2000. I won't even begin to tell you what I heard when I started doing CrossFit.
All I can say is listen to your heart and follow the path that makes you happy - and ignore the naysayers who will try to steal your dream and diminish your joy. I know that John Kalil's (pictured) friends probably think he's crazy for doing CrossFit, but if you ask him he'll tell you he's never felt better or more alive. If you don't believe me just ask him - he's at every class.
Let me leave you with one of my favorite quotes:
"It's the same each time with progress. First they ignore you, then they say you are mad, then dangerous, then there is a pause and then you can't find anyone who disagrees with you."
- Tony Benn