Out of the dozens of 'grandpa' porn stars (or a porn star 60+) I've seen on video, I don't think I've ever seen one circumcised in that age group. It seems the cut guys quite before they are 50. I hypothesize most older men by that age are either impotent or their penis is overly desensitized that they barely derive much pleasure from sex that they don't bother doing porn. What do you think?