It's just a preference. I can do way more on my fgfs than I can do on a bmx, I just understand the way a fixed drivechain works easier than a freewheel.
michael schmitt nah man dont get me wrong I am 6'2 myself and I ride bmx. Its just that those dudes Are doin tricks that would feel/look better on a bmx and usally people who do them on 24 inch or fixies or whatever say that a regular bike just feels too small