When I was a kid in Hawaii in the 60s I ran around in shorts. No shirt, no shoes, no sun screen. It did not exist. I was the color of dark wood. My grandparents did not recognize us when they stepped off the airplane.
I could be outside in the sun all day and not get sunburned.
Now I go to the dermatologist every 12 months to get all the pre-cancerous spots zapped and make sure no skin cancer has popped up.
Stay out of the sun and avoid a tan. It can KILL you. I know that is wasted electrons but don't ever say no one warned you.