errr ok... well I am pretty much your age and I love disney and I love KH and all of my friends 21 and older love kingdom hearts too so I think your theory is a bit off....
just try it.
Edit: also read the "love it or hate it" thread... I think that will give you a good idea...
but thats only because you are female.
i'd be willing to bet that MOST people our age do not like Disney.
and more of them are female than men.
i'm not trying to argue with you here, i'm just saying.. lol