Since I'm a devoted nudist, going nude as much as possible, when I have to dress I never wear underwear as it gives me a little sense of freedom of feeling like I'm nude.
No underwear here majority of the time. On occasion I will wear them but I find those to be few and far between.
It’s hot here in the tropics all the time. The less clothes the better. Everybody here knows that. Underwear is too binding and sweaty. My wife just left here to visit friends across the bay. Hopped in a boat in a sun dress and no underwear on. She is way past worrying about what people think. Most of the time we are naked at our rain forest house. I am now.