So many reasons not to go out and sit in the sun without protection but my grandmother’s advice remains my standard. She pointed out how the Sun damages skin and with age makes it look like leather. She grew up in the country on a ranch and would never go out to “soak up the sun” and she had beautiful, unwrinkled skin until she passed.
Then there is the discussion we could have of the ozone layer that was different years ago than it is now.
Depending on where you live (I’m in AZ) just walking to and from your car and taking the garbage to the curb, etc., throughout the year is enough exposure to the sun.
However, here’s the reason that is now even more pertinent: there is a warning that when taking Hydroxyurea you should avoid unnecessary exposure to sunlight and protect yourself with sunscreen, protective clothing, etc.