Oh, I get it. It's like taking a tennis racket out of its protective sleeve means you're preparing for a match. So likewise a body without the protective sleeve of clothing signals preparation for sex.

I understand this like I understand people thinking that the color blue protects against witches, that an itchy nose means you are about to kiss a fool, or that if you forget your umbrella it will surely rain. Fears get mushed into superstitions and are instantly confirmed when it rains, a lover disappoints, or witches don't appear.

The only way to discredit the nudity superstition is to get out there and hike nude, garden nude, collect mail nude and in general crush superstition with overwhelming instances of nudity leading nowhere in particular.