Do minor cuts and scrapes objectively hurt more, or less, as you get older? Why is this so? Is this a known phenomenon, are there studies? Example: Does a paper cut hurt more, or less, at age 60 than at age 30? Could there always be a correlation with peripheral arterial disease? Any other factors?

Yes, it is widely known that even minor cuts take longer to heal and can be more serious as we age. The question is about experiencing or measuring pain.
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#AskFedi

@afreytes Good question. I mean, kids cry at relatively minor injuries. And subjectively, I feel like my pain tolerance has increased somewhat with age. But that could be thanks to conditioning via being in long-term pain for some years. (Fortunately not anymore.)