Im 22 and you still a youngin. The average age of gamers is increasing because gaming started as a niche for kids/teens in the late 80's, became more main stream as those kids/teens grew up and continued to play along with more kids/teens coming into the picture during the 90's, and has become one of the strongest entertainment industries in the world this past decade. A while ago you would be an old gamer, but no longer sir.
Edit - Grammar.
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