I've sometimes heard people say "not everyone has the courage to chase after their dreams". Yeah, chasing your dreams is scary and requires courage (among other things). And because of this, most people don't do it.
But I think, deep down, everyone does in fact has this courage...they just don't know it yet. So maybe it's more accurate to say "not everyone has DISCOVERED the courage to chase after their dreams". And if you haven't yet discovered yours, I hope this helps you to.