On always being clothed
I believe one of the main reasons for these negative feelings is our tendency to equate nudity to sexuality. Because we have been conditioned to think of bathing and sex as the only acceptable times to be undressed, we are chronically clothed: it is even expected that while alone you have something on. Reasons such as hygiene and protection from the environment do not need to be answered by law, but rather by common sense. Only we have a say in whether or not we put on a coat while it’s snowing, so why should a shirt have it’s own law? As for people going fully nude in public places, nudist colonies have already established common etiquette to keep everyone healthy, happy and clean.
I believe that nudity has the potential to facilitate better attitudes on body image and sex. Outlawing your natural form in public causes people to be ashamed of their bodies, and in turn perpetuates the cycle of sexual confusion and shame. People ogling at the naked body does not spur from nudity, but from a puritanical school of thought that demonizes the very essence of what it means to be human.