How can ANYONE be excited about turning 30???

How can anyone be excited about turning 30?! I dread turning 30! I'm not even married or have kids, plus you'll no longer be classified as a youth! I want my youth back! I have five more years until I'm 30! I don't wanna be 30!!!! I wanna stay 20s. My dad says I'm getting old. My brothers say, "Damn we're getting old. You can't say, "Damn you guys are old!" Anymore because you're close to being 30. So you can't talk."
Why do you dread turning 30?