DP, I think you are missing the distinction I am trying to make. I think being a kid at heart is cool. We adults can learn many things from kids - joy of life, openness to awe and wonder, active imagination, sense of humor, sponteneity, joy in adventure, inquisitiveness etc. etc.
But, to pick on just one LABusa's thing (I could choose from many other things) I don't associate a 'love' of porn with the noble attributes of being a kid. It is not an extension of the 'noble attributes'. It is not an improvement, evolution, or any of those things. I won't even say it is a corruption of those things. It is perhaps just another thing entirely. Neither childlike/young at heart, nor adult maturity.
You say, you don't want to grow up. I can agree with that, in a way. But LABusa's behaviour isn't childlike, young at heart, behavior. And it isn't mature adult behavior. I submit that it is inferior to both, something 'other'. Yeah, maybe it genuinely 'feels good' (to some people), but so does doing drugs, and we know where that leads in the long run.