Is 76 too old for prostate cancer surgery?

I was diagnosed in late 3016 and after removing cancer from the bladder I had a prostatectomy in 2017. I was 76 years of age and had no problems with the robotic operation even though it's a 5+hours job. I had a Gleason score of 9.
Post op I have been on ADT (ZOLADEX) with a PSA of 0.001. Sex life is non-existent but I haven't suffered from incontinence at any stage.
If my Urologist had told me I was too old, then I would quickly have sought another opinion. I am now in the 9th year of fighting Prostate cancer, that has metastasized, bladder cancer with a visit to the hospital in 3 days to check out the bladder and an aggressive form of Leukaemia. I do suffer from fatigue and continue to work on that.
The decision is yours, I have always taken the position of being responsible for my health, I have a good medical team that advise me and I take their advice, research the issue, and then talk to them about my decision.
Stay strong and always check things out if you have any doubts. Good Luck.