Considerations against kidney donation

Hello. First, a very big thank you for wanting to donate. An amazing altruistic act. It is agreed that there is no obligation to donate, and several explanations can be offered for this: 1. Why me? (Although, this can be overcome by drawing lots.) 2. Who would bet that a kidney donation is like a death? One might ask why I am not allowed to take a kidney from you by force if I need it, since the prohibition of a donor is not one of the three most serious, and therefore the Piku'n rejects it. One answer to this is that taking an organ is like a death. (Although, I think there is another answer, that you are not allowed to enter the territory of the other, even if you are right.) Regarding the considerations, I don't have a clear answer. If you know that a relative will donate if you don't donate, that seems like a completely legitimate consideration. But if he won't donate anyway, then it's even less likely to decide based on that. If the father isn't willing for them to donate, that's downright impudence (unless he himself isn't willing to accept donations, in which case the question doesn't arise). I wouldn't donate to him. Again, since there's no obligation to donate, then any consideration you have is legitimate, and therefore there's no consideration you're forbidden to make.