Tutus aren't what most people would call a casual garment. The first thing that comes to mind when we think tutus is ballet. So the general image of what a tutu wearer might look like is an actual ballet dancer or a little girl.
But if you invest in a quality tutu, it can be a pretty cool statement piece. Now that unitards are sort of entering mainstream fashion, tutus have much more potential. Whenever you go in a place like H&M or Forever21, you can find some pretty cute unitards that are supposed to be worn like of like a shirt.
When combined with some really pretty tights, you can match them with the unitard to make a unique look. Imagine a modern patterned unitard with a print like this:
Alongside a black tutu and a tight pattern that looks like this: