You should not, that is why :)
As for me: I do not think people really care, my friends are not that judgemental of it. I mean I do not over exaggerate my likeness for the film, it is pretty great obviously but I would not say I am obsessed, I just thought it was a good enough film to see if there were any forums to meet other fans on. But in reality, my friends just take it as another film I like, I mean it is no different to liking any other film really.
And being one of the highest grossing films of all time is near proof that it is not aimed entirely at kids anyway.