There are many different philosophies. My neighbor is 84 years old and worked for the US Forest Service for 30 years doing timber management and fire prevention

There are many different philosophies. My neighbor is 84 years old and worked for the US Forest Service for 30 years doing timber management and fire prevention / suppression. He has thousands of hours of experience using chainsaws, much of that on trees that are 100+ feet tall. Even in his 80s, he prefers to use a chainsaw wearing nothing other than shorts and a t-shirt - no chaps, no long pants, no socks, and no shoes. His argument is that safety equipment makes people complacent, especially when they are experienced enough to move quickly. If you have bare feet / legs, you are much more aware of the dangers and hence more careful. He still has all his limbs and the fingers / toes at the ends of them. Too many of his former coworkers do not. He is nearly deaf, so using hearing protection might have been better. That's all anecdotal at best, but experts often disagree on the safest approach for themselves vs. others. And what's best for experts is often not what's best for novices, and vice versa.