Hmmm… I guess Google isn’t completely wrong - the benefits of reduced prostate cancer do favour the more mature gentleman but, and it’s an important but, the original study of over 2000 vigorous and healthy Australian men showed that the most significant reductions in prostate cancer occurred in men who “cleaned the pipes” once a day in their 20s. So you do the hard work in your 20s to get the benefits in later life.
Young Max should be developing the habit now so that he will continue this important health promotion activity for the rest of his life.