History of a Gaming Life
To aid the theorizing here I go:
We started playing when I was about 8, first finding the game in The States and then bringing it back up to Canada quite early. There was only one place we could find in Toronto (2 hours drive) to get anything new, and there wasn't much out there. My older brother and I played regularly with differing groups straight on throughout high school (each running the high school club in our turn). Towards the end of high school, "life got in the way" more than not, and I think we each started to drop away from it.
I got rebit briefly when 2nd edition got started, for a couple of years towards the end of College, particularly with Dark Sun and Spelljammer. But admittedly it was very hard to put together a group of peers willing to give it a go. And so I just bought for the fun of reading over those years. My brother eventually got back into gaming not too far off from then, as a professional gaming writer, and still does quite successfully to this day.
Then everything went back in storage once again, for years, until my step-son started to investigate the game at a friend's house. His mother told me about it, and I began to look into where the game was at these days. And that turned out to be 3rd Edition. I bought myself and my sons a set of books and taught them the rules and played some adventures. It was a tremendous bonding opportunity! Both they (and I, when we got together) played for several years, although each living in separate cities.
Eventually I met some female friends who showed some interest in the game (which is why I like the mixed genders in the 3rd edition rulebooks so much) and we were able to put together a group for about a year and a half, but distances between us grew unmanageable. So now I keep buying a tonne of materials even though I don't play anymore -- simply as food for the Imagination.
So as to early age = dedicated player. I'd say that's probably not true in my case. I started early, but have kept fading in and out throughout my 35-year lifespan. It does, however, make for an extremely nostalgic and curious enthusiast. Hope that helps you.
~ALX~