Long-term prostate-cancer patients don't know more than urologists or oncologists, but we do know different things. We have the lived experience and the results of our discussions with other patients, but not the formal training to cover the dangerous edge cases. That's why treatment choices need to be a consultation between the doctor (the expert) and the patient (the one who literally has skin in the game).

Of course, if the doctor isn't willing to consult and just wants to dictate, then it's time to find a new doctor.