I have trained my own skin to adapt to the sun. Last summer I worked up to 2 hrs straight at UV12 without burning or sunspots and I’m caucasian + 25% Irish. There is more nuance to sun damaging skin. Do you know what POMC is? This will give you a great intro to the biophysics that I’m talking about: https://youtu.be/d7qjh4BIGbc?si=pTlUGWL-Dlf00YKz