Because nature gives us what it gives us. Biology is what it is and we have to accept that. I hope that my children and the friends of my children will grow up realizing that whatever they were born with is good. Hair, sagginess, small, large. I may not be that comfortable, but I really hope we raise our next generation to be.
There are many and varied definitions of what Naturists are or are not, however all agree that the body is a natural and that it feels good to be nude. Being a nudist or a naturist has nothing to do with sex, but rather a feeling of being free, comfortable, and one with nature. Naturists believe in body acceptance. This website is a great resources to getting to know nudism from a visual and textual point of view.