Exactly. They're splitting it up with communities. If you don't want the family/kid side of it, there's plenty of space to be just an adult. Unlike other ships where it blends together.
That's my approach too. I despise the idea of dressing up just to eat a meal. But some people love it.
And yet no brawls ever break out in the MDR because of it. At least not on RC, maybe Carnival