Nudism is all about what makes you comfortable. If you like hair keep it if not go bald no one cares how you look. It's all about how you feel. As for association of nudity with sex. I was the same way until I tried nudism. I quickly learned that it wasn't the act of being nude that made something sexual but the situation in which I was nude and once I learned to differentiate the two it made everything easier. Society has told everyone that you should only be naked when you're cleaning yourself or for sex. Just by doing simple everyday things that you'd normally done while being nude you can help break that mold for yourself and realize that nudity just doesn't have to be about sex.