Colton really was following a script when asking each father's "permission" to marry their daughter. Now whether that was the producer's script or one that Colton wrote in his own head is anyone's guess. It is so archaic to think that a grown woman needs her father to give permission to get married.
For once, I wish the bachelor would sit down with both parents and say,
"I know this is an awkward situation for you and your family. I'm really interested in your daughter and if I decide to propose to one of the four women left, I will take it seriously. A reality show is not a typical place to meet your soul mate, so I can understand why you might be skeptical. I just hope you have been given enough time with me and have faith in your daughter's judgement so that if she is the final one and I propose, you are happy at the thought of us spending the rest of our lives together."
No "permission", no "blessing" (what if they are atheists?), just I hope you can be happy.