I had colorectal surgery for a 5cm tumor at 41. I had two very young kids and wife, so opting out wasn't really a serious option. I'm pretty glad how things tur

I had colorectal surgery for a 5cm tumor at 41. I had two very young kids and wife, so opting out wasn't really a serious option. I'm pretty glad how things turned out, all things considered but knowing how tough those years of treatment and surgery were, there's no chance in hell I'd go through it at 80. I lost my father to lung cancer at 85, and his last year of fighting it really hit hard on his quality of life. He thought he was going to beat it though.