My sister did it through high school and into college. Doesn't seem too tough....I'm more athletic than her and feel like I could do it. But she practices a lot and still isn't anywere near the best at her level.
So I guess it's like anything else. A lot of us could do it if we tried for a bit (practicing, that is....not just picking up a pole and running). But it would take the right body type and serious dedication to make it far.