Also yes they did wear sunscreen. Just not in the way most people think of it today. But people in extremely sunny areas have been wearing light fabric but long sleeved and full pants, or smearing mud on their skin for millennia.
Yes, your ancestors had more ozone layer, and yes, your ancestors did have skin cancer, but ALSO they did wear “sunscreen” just not the kind in a bottle from Walmart.
some 18th and 19th century beauty/home apothecary guides recommend wearing cold cream (sometimes set with powder) when you go outside to prevent sunburn
some 18th and 19th cold cream and powder recipes contained zinc oxide, to give a white makeup effect due to the racist/classist belief that Pale Skin Was Better
do you see where I’m going with this
Also: Hats. Every society and time period I’m familiar with prior to the mid 20th century really leaned into wearing something on your head outdoors, which does help keep sun, wind, rain, snow, dust, etc. off your scalp (and potentially face/neck/shoulders).
There was at least one very long and fiddly labour strike in ancient Egypt where the workers refused to build a pyramid until conditions improved, and among their demands was a demand for more “cosmetics” to be supplied to the workers. Egyptian ‘cosmetics’ were, of course, used as sunscreen.
