I like that idea "you all" are putting forth about erections. I think part of it may come from that if children happen to be around it might harm them? at least that's what I always thought the fuss was about, after all, nudity and children together?, sends chills up my back!
My first time on a nude beach I was 14, had an erection before I even stripped off, but I was so embarrassed that I hid it from my school mates in case they saw it and ridiculed me! They probably would have wanted to come over and have a close look at it! These were boys that we were all together at a boys private school and one day went to the nude beach to check it out! I think I was the only one to bare all, but only for a few minutes! Wish I could have been more brave to have walked around too and stayed nude longer.
I've been to nude beachs for years and it does happen a good amount,nothing wrong with it.especially if I'm with a girl freind or even alone. if im walking down the beach I will carry a towel and try to cover up (erection or not) when i pass a textile walking thru,although they are probably walking thru pretending not to know its a c/o area but i cover up anyway usually. you dont want to offend anyone.or solicit unwanted approaches...