For one thing, our society was way more open to male nudity - even in the US - until the last few decades. Shame and fear came in, freedpm went out.
Now we have a much more puritanical approach to all things body or sex rlated.
And more porn than ever.
So older men are more accostumed to thr concept of non sexual nudity and nude activities, especially with all male settings.
Aside from that, I would guess there are more older folks because most people arent able to let go of the insecurities and hsng ups until they are pretty far on in life. At a certain age, you see life a lot more clearly a toss off a lot of your tolerance for the bullshit. The clothes probably come off about then, too.
A visit to Spanish beaches shows that those naked tend to be under about 35, and contain almost as many women as men. British are amongst them. At 64 I will be amongst the oldest of the naked people on a Spanish beach.
Yet come home and where are they? Not in the naturist clubs I know of, which are middle aged to old and predominantly male. Is there something about the naturist club way of doing things that puts those who are younger off, especially females?
I've often pondered this in regard to my own nudist life of 30+ years. I think as many others have stated we are in a huge crisis of "body image/body acceptance" slopes for women - although I think it's important to not rule men out in that notion too. Some times, I wonder if it is a "primal" thing with men. Some days, as a male, I almost think men are more "programmed/wired" to being nudist and accepting of social nudity with fewer societal issues. I have noticed at my home resort, over the past few years - there are more younger men and younger couples. It makes my heart sing to meet younger people not being jaded by what society may think of social nudity. And when I talk with them, it's interesting to see how nudity opens up their mind. I think for some people it can be a cultural awakening. For others, it's experiencing the world as they never had. And, there are those who find they focus better without distraction. I wish all ages, genders, and orientations could experience the joys of how social nudity opens our minds and allows us to peer deeper into ourselves and what's around us. Which leads me back to wondering, are men more prone to accepting the lifestyle? More open minded? More programmed to be nudists? Interesting conversation. No matter, it needs to be a joy for everyone - especially those who want to try it.
I'm a bit beyond middle age, but in looking back have been a nudist at least at heart since I was preteen. Grew up with open locker rooms and nude swim classes as late as college in 1970, and longed for places to be nude. Unfortunately, society and possibly the norms of the family kept me covered except on rare occasions until I was in my early 40's. I'm still not a social nudist, but spend a lot more of my private time without clothing than at any time before. When home alone, I am nude most of the time. With my wife home, not as much, but certainly with less covering than if I were out.
Admittedly I'm speaking from my own experience. I enjoyed nudity my whole life, but I was in the closet. It wasn't until I turned 40 and had my "mid-life crisis" that I became more open about a lot in my life. (Including my bisexuality.)
Why are so many Nudists middle-aged men? Because time is running out for us to live our true authentic selves. We're divorced and free to live however we want without fear of judgment. We're at the age where we don't care what anyone else thinks. We will live the life we always wanted.
I just turned 40 and personally believe I have gotten to a point that I want to not care what other people think anymore. Growing up there are so much expectations so you tend to be in line with social norms. Then at 40 you should be all set, right? Well that expectation stars to fade as you approach 40 and you look to older males for examples. And ( clothed or not) older men tend to not care what other people think and just live there life. So that is when nudism become a well why the hell not kind of thing. On the other side women have even more expectations on how they act and how they look. So they have even more layers to go against then men. So I am always in awe of women nudists ( young and old) that have found a way to ignore those expectations and be themselves. In writing this I realize that I want to know more people that can live their life free from those rules. Like I said great topic and these are just my thoughts.
Personally, I always wanted to be a nudist but I was body shamed as a teenager and was ashamed of my body/penis. It wasn't until I was in my late 40's that I found the courage to toss off my clothing and risk the taunts and laughter. Guess what? There were no taunts however I did get teased a little about my shyness. When I first came out of the bisexual closet and nudist closet it took quite a lot of beer to overcome the shyness. That's no longer necessary. I've discovered it's not about cocks or perfect bodies. It's about freedom and self acceptance.
Perhaps it is because we have the chance to retire, or not have to work so many hours, or the fact that we are totally comfortable with ourselves and are finally in a position where our private life cannot cause problems with our job.
I think I was born with the nudist gene - my parents couldn't keep clothes on me. We also swam nude at the YMCA in the old days. But growing up in the country, it was nothing to skinny dip and stay naked. Also, we showered after gym class and gained a lot of freedom during the 60s.