Very wise precaution. An acquaintance of mine got a melanoma on the scalp from not protecting it. Even though I have a full head of hair I wear a hat such as yours, wide brim, something between a planter's hat and a stetson, purchased in California in 2014 btw. I never had an American style hat before (in fact never wore hats at all) but was getting a bit overcome in the sun on the head during our holiday. The hat enormously increased my heat tolerance and comfort in the sun. I recognise, Bob, that your hat is not just a matter of style but of solid practicality.
John