Well, aside from the issue whether it's Biden instead of the stable of actors, older men can live indefinitely with low malignancy prostate cancer. It's called 'watchful waiting', meaning that they just monitor and more than likely some other cause of death will prevail before the prostate becomes an issue.
The MSM and Ai results say Biden didn't take PSA blood tests since he was age 71!! He started his term at age 78.
I call total BS. POTUS would get that shit done yearly, at minimum, even if the "standard" medical community says it's not "recommended."