My dad was a bird and small game hunter, but wouldn't hunt a deer if his life had depended on it. Still, he took me for birds and squirrels, and when I was about 9 or 10, he got me a bow (Indian fiberglass longbow). That really got the juices flowing.
I had an uncle who was an avid hunter, and he introduced me to deer hunting. It was all downhill after that; I was hooked. I hunted with guns for several years before really getting serious about bowhunting, but that little longbow I got when I was little scared the hell out of lots of birds and lizards, and even scored on a few. In the early 70's, I was a 'two season hunter' a la the Bear Archery ads, but by the late 70s it was either bows or muzzleloaders. By the early 80s, the bow took over, and although I have taken a few animals with guns since then, it just doesn't turn my crank. I haven't shot any big game with a gun since about 1995 or so, and probably won't again.