Are we born leaders? Yes, God has determined what we will do before we we even concieved. But I think I know what you are talking about, and to answer that question: it depends on how you were raised. People who have been in church all of thier life are so used to being in church that it just seems to come naturally.
Think of it like this. You ever notice how a 3 or 4 year old, knows how to use a computer without anybody really teaching them, while a 60 year old cant use one, they have to be taught? This is because the child was born into it this "computer age" at a young age and we know that when children learn things at a young age, it sticks with them. The same goes for gospel music.
I'm on my way to be a great gospel organist, but i've only been into gospel for 4 years. If I were in a gospel type church all of my life, I think I would have picked it up a lot quicker than I did. I say all that to say, that Almost anybody can become P+W leader, but if they werent born and raised with gospel music, then it will be a lot harder for them.
And we cant forget about the anointing......