Nudism by definition means “non-sexual nudity” even while it is diversified as a whole to every day living. Does this definition apply to sexual acts done so in the privacy of ones own home? How then does a nudist feel to groups collaborating both nudism and swinging?

Why is the word sex so taboo in nudism? If people don’t have a problem talking about sex and sexuality while clothed, then why is it such a no no when naked? Isn’t the idea of nudism is to simply be naked but otherwise everything else is exactly the same?