my first bike was a briggs and stratton powered minibike when I was 6. Then when I was 9 my dad bought me a Honda Z50, then an XR75, then an XR80 and XR100. I bought my first bike when I was 13 with money that I made washing dishes at a local restaurant; a new 1982 Honda CR80R. A couple years later that was traded off on a used 1982 RM250Z and 36 bikes later, here I am. I've raced offroad since 1984 on and off with a 15 year stint from about 1995 - 2010.
I recently purchased a touring bike and was thinking that ignorance is bliss; there is no way I'd start out on the street today without all those years of dirtbiking experience...