I blame my Grandfather and my Uncle. They had dirt bikes back in the late 60's early 70's. A Moto-Beta and a Motoguzzi.
I remember them taking me for rides when I was 6 or 7.
The first time I ever drove a bike was Fourth of July weekend 1976. (the Bicentennial!)
I was about 12 years old.
I was visiting my Grandparents in Washington state for the summer.
We went to camp at the coast with my Great Uncle and his kids, my cousins, who were about my age.
My cousins had a pair a new Yamaha 100's and my Uncle brought an old Bridgestone 90 for me to ride.
My uncle asked me if I knew how to ride a bike and of course I lied and said yes...
I got on the old Bridgestone, kicked it over, pulled in the clutch, dropped it in first, gave it some gas and eased out the clutch, and took off down the road! (Thank goodness I didn't make a fool out of myself!)
I rode the crap out of the bike the whole weekend. Even when it started raining I wouldn't park it.
Laid it down slowly once and broke the clutch lever in half but kept riding.
When we got back to my Grandparents house my Grandfather pulled out his 1967 Suzuki 80 that had been sitting his garage for years and after cleaning the rust out of the tank got it running for me. I rode that bike every day in the empty field next to their house until something broke in the engine case.
Anyway, it was about the most awesome summer ever.
The next year my Dad had a buddy who had a little Yamaha RD he sold me for $100.
I rode that for a couple of years until I wrecked it and broke my leg. (Mom was right!!)
I didn't ride much again until the late 80's when I got a dirt bike.