As they walk toward Jerusalem, the disciples are afraid of the conflict ahead.
I bet so, Herod would be there and he has done had John the Baptist killed. it could be assumed this would surely happen to Jesus as well, he was even more of a threat.
I also wonder about the ags of the followers. If all the male babies were put to death when he was born would he have been told about this growing up? What pressure would he have been under when his parent(s) told him all these babies died because they were trying to kill him? I think the psychologial implication would be enough to make it a self fulfilling prophacy.