When I was younger I always thought that as you grew older you would grow up.. ha not true. I think that as I have grown, my maturity level has definitely gone down. I don't care as much about what people around me think, so I just kind of let loose and do as I please. I have some examples of that with a few of my fellow schoolmates..
So I guess that guy knew what he was talking about when he said something about growing up, but not getting boring.