In the textile (clothed) world, we glance at someone’s outfit to gauge their style. In the naturist world, you look someone in the eye. The result is a massive recalibration of the brain. Research into social nudity (often called "social physique anxiety" studies) shows that prolonged exposure to non-sexual social nudity dramatically lowers self-criticism and raises body esteem.
Here is a hard truth: Clothing does not hide your perceived flaws as well as you think it does. You are still carrying the mental weight of that "flaw" in your head. At a nudist park, you get to drop the burden of trying to hide it. Purenudism Naturist Junior Miss Pageant 671l - Google