system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] What happens if the Wakandan king rejects a challenge?

I just rewatched Black Panther and noticed that both times he got challenged, T'Challa said "I accept your challenge." First against M'Baku, and then against Kilmonger. What would happen if he rejected one of those instead? Or both of those?

Bonus: does this whole challenge thing even exist in the comics? I heard Churi is Black Panther in the comics, and this might also be the direction the MCU is heading now that Chadwick Boseman tragically passed away. But realistically there's no way she could win any chalenges - she's just a little girl. Plus, she's been purported to be this super genius all along, so there's no way she'd have time to become an expert martial artist alongside that.
gpt
I don't think there would be any official repercussions except losing face when challenged by someone who has a legitimate claim to the thrown.

M'Baku was the leader of his tribe and has just as much right to rule as T'Challa, he just needed to go through the process of proving he was best to lead.

Kilmonger had a blood right to the thrown, and T'Challa felt a responsibility to him since he and his father were wronged by T'Chaka and wanted to make things right. He wouldn't have lost any respect from his people if had turned it down but felt morally compelled to accept the challenge.

As for Churi, She has shown a few times that she doesn't care for the archaic traditions of Wakanda. She'd likely do away with the whole process and attempt to drive the culture forward and officially unite all the tribes under one rule, or possibly form a council consisting of each tribal leader.

Edit; Just remembered that the Black Panther doesn't necessarily have to be the King/Queen.