I'd really love to be taller. I'm quite short (162 cm) and really want to be more like 5'9" (175 cm). I want to look regal, stately, elegant, powerful, even imposing. I don't want to look cute. I want to be taken seriously even by strangers, but people think I'm a teenager even though I'm almost 24.
I had a hotel receptionist ask last month if I'm being accompanied by an adult, since she thought I was a minor. She was very surprised to see my ID, but she was super sweet about it. Told me I had flawless skin, so I'm not complaining

But I do feel that when I was in university or at work, I wasn't taken as seriously as the tall imposing people who naturally look older.
Besides looking older, I'd be less claustrophobic in crowds if I were taller. I hate not being able to see over people's heads when I'm walking through a crowded area.
And being able to eat more and maintain a healthy weight. That would be the dream.