Gede: Since the early Pixar and Dreamworks days I have seen this strategy. Example:
Shreck: "Do you think he is compensating for something?" Kids think "Yeah, because he is short. Haha.", while grownups see it as a penis joke cleverly disguised.
In this way, kids and grown-ups can enjoy the movie together.
They have one-upped that considerably in Zootopia.
What most people aren't aware of is that Judy's neighbours are actually a gay married couple. I'm pretty sure that wasn't mentioned specifically in the movie but it's obvious once you think about it.
Could they be just pals who shack up together for practical reasons (sharing rent, etc.)? Nope, since they share the same family name. Check the credits, they are named Bucky Oryx-Antlerson and Pronk Oryx-Antlerson.
Then brothers maybe? Impossible since they are different species. While both are part of the antelope family one of them is a kudu and the other an oryx. That rules out any blood relationship. (I admit I had to look the animals up but their different horns instantly give away that they are not the same species. See picture.)
Two guys who are not blood related but have the same family name and live together, what could they possibly be? And they have a hyphenated family name on top which you typically get through marriage. You do the math.
And when you keep in mind that they are a gay married couple then what they said to Judy ("We're loud. Don't expect us to apologize for it.") suddenly gets whole new levels of meaning. ;-)
I really have to applaud Disney for their courage. A gay married couple in a kids movie would have been unthinkable only a few years ago.