I would think so! I also think that you have to be naturally gifted to have such skill as the COB guys!
I don't really think so coz I've seen tons of videos where guys of different age play COB songs just like COB.
I think that the thing is not to play like they do the thing is to make such music that every one finds cool and follows it.
A real riddle for me is how do they compose such good stuff.
Probably this is a naturally gift like you said.
What do others think?