Fortunately some people seek shade under umbrellas.
I always tried to protect my daughter's skin on the beach because she inherited her Dad's fair complexion.
She used to ask me why I protected her skin but didn't use sunscreen myself.
My ignorant answer was that I tanned rather than burned since I had a darker complexion than hers.
I'm the one who ended up with advanced melanoma. Although I've done well since the lymph nodes the melanoma had spread to were removed, I've known many melanoma patients who weren't as lucky as me and sadly died.