It is a compliment. At least you should take it as a compliment^^ I mean, as long as in certain situations you're able to be the adult then it's better this way. Let's take my dad for example, he is definitely a child sometimes, but then he knows when to cut the childishness and act like an adult. heh, I hope you get what I mean...

Oh, and dad just called me, btw. He was so excited, as he had bought a new car :D