A layman curiosity here. All I know about the courts comes from TV shows, which are, apparently, not real very much. However, given their original intent of educate populace about the legal system, there should be some semblance of realism, or so I hope.
Anyway, the question comes from watching several episodes of Judge Judy. She seems to have a very strong bias against young people. In more than one episode she said something like this: "How do you know that a teenager is lying? His lips move."
So she affirmed multiple times in several unrelated episodes that she does not trust teenagers' words for no reason other than being teenagers. Bias of that magnitude obviously puts teenage litigants at strong disadvantage. However, Judge Judy has never recused herself in trials (or mediations, whatever they are) on the basis of her own bias.
Thus the question: would unapologetic and openly professed judicial bias like that be tolerated in real courts? Would the party being biased against be able to push judicial recusal?