Daenerys cuddled in closer to him, burying her face into his neck as he held her. "You are right, I know you are. But still..." she was so worried. "I've...I was never raised to be a leader. I was raised to be the good, obedient daughter. I don't know that I have the capacity to lead."

There was no scenario that her father had anticipated in which Daenerys would be ruler. There were two brothers before her that were more than capable and expected to carry on the Tagaryen legacy.