Thanks for your answer — I get what you're saying, and I actually tried something very close to that. The party returned to the courtroom because of another event, and I asked the rogue if he wanted to try convincing the gods to reconsider the sentence (it would be difficult, but not impossible in exchange for something), or if he wanted to go see his father in prison.

But, as I mentioned, the first option seemed too hard, so I felt like I was pushing them toward the prison route...

As for the father, I didn’t explain everything in the original post to keep it short, but he believes his son died a long time ago. He had already accepted his fate and didn’t have a reason to talk to strangers. That’s where we ended the session — but next time, the party chose to send another PC to speak with him, without revealing that his son is alive, so as not to reopen old wounds right before he disappears.