I grew up on a golf course and in a swimming pool (Echo Valley CC then DMCC) and did the blistering burn every summer for too many years. Went to my normal derm when I was 25-ish and we started taking moles off. We'd take 2 off a year and each one would test as (at the time) a dysplastic nevus. Basically pre-cancer. After moving and changing doctors and doing the same routine, my derm quit cutting them out saying we know exactly what they will be - dysplastic nevi. For him, unless and until we started seeing changes in any of them, we would leave them all in place.
Several years ago - age 44-ish - I had a sore open on my forehead that grew quickly. Went in, biopsy, and its basal. Cut it out but then on the other side of my forehead - about a month later - had the same thing. Another basal... cut it out. Then I asked about the crusty thing on my ear. Squamous. Used some anti-cancer cream that made my face peel and bleed but it went away.
Long story short - NO big deal with the basal and squamous. For me its paying the price of my childhood but I am pretty rigorous about both sunscreen and my annual full body (sack included) skin cancer check with my derm. As far as cancers go, you'll never see a telethon or road race or even a wristband for basal or squamous cancer.