Board Thread:Rewatching "Merlin" - Season One/@comment-5102537-20130330123307/@comment-6905051-20130404072928

Knowing Uther, he would probably have  confronted Arthur directly and  banned him outright from seeing Sophia. And knowing Arthur's nature, he would have climbed out of the window, to do exactly that and find some way to make Merlin help him. Either emotionally blackmailing him, or calling him my friend to use Merlin's gratitude in being considered his friend. And merlin would have found a way to defeat the Sidhe even there was an army. He did it later. Yes there can be an argument, the makers were saving it for later citing Merlin's power have not yet grown so much.

I believe Gaius wanted to protect Morgana since he too, at that time, did not know who Morgana actually is. Just like he smuggled Morgause out instead of letting her be killed. Maybe it was his sweet revenge on Uther, by keeping Morgana's powers secret. As much as trouble bad magic users may have caused, lots of innocent people and children too died in Uther's hand. Deep down in his mind, there ought to be some grudge/ grievance/ sadness about that.