I didn't get the memo until my 50th birthday when my doctor referred me a dermatologist who used liquid nitrogen to burn off a basal carcinoma on my face. https://www.skincancer.org/skin-cancer-information/basal-cell-carcinoma Since then (17 years) I've been rigorous about protection and have taken some heat in the lineup for wearing a "grandpa hat." I've learned to spot suspicious growths and immediately make an appointment with my specialist but I suspect the damage has already been done.
Identify melanoma!

Resource to stay safe.
https://www.surfline.com/surf-news/surfers-guide-avoiding-skin-cancer/36404?utm_source=twitter&utm_medium=social&utm_content=topical&utm_campaign=skin-cancer