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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@afreytes Personally, I have been losing nerve sensitivity over my life and so I may not even notice minor cuts and scrapes anymore. I find this aligns with my memory of elders, who seemed not to realise when they'd injured themself.
At least some of this stuff seems to be well-known but also include various "well, not sure why that works" shrugs from my scan of more recent papers around the topic. https://doi.org/10.1016/j.neuroscience.2021.02.015
@afreytes @shivoa Yeah, same. It's fun playing the game of "Let's find the mystery bruise" once a week and speculating what I couldve even done to get a cut/bruise there of all places