Truth is, there aren't any grown-ups.

“Grown-ups don't look like grown-ups on the inside either. Outside, they're big and thoughtless and they always know what they're doing. Inside, they look just like they always have. Like they did when they were your age. Truth is, there aren't any grown-ups. Not one, in the whole wide world.”
― Neil Gaiman, The Ocean at the End of the Lane