>>22959007
>>22959036
>>22959031
skin cancer can takes decades to develop after sunburns

it wasn't until the 1970s that tanning and sun bathing becmae popular, prior to that tanned skin was associated with the lower class so most people tended to cover up to avoid getting too tan.
Beaches also had dress code laws.

The majority of people getting skin cancer now are 50+, the same people that were sunbathing in the 70 and 80s.
The old people in the 70s and 80s spent their life avoiding tans and wearing hats