Why the fuss about naked older people? See details.?

I am a (happily married mother of two boys) woman in her early forties from the UK who is fond of nude sunbathing/swimming and I go to nude beaches if possible, and I wish there more of them. I am amazed by the people who post here saying that it is okay for young pretty things to be nude, but not older people. To me that is blatently ageist, besides which I have never had problems with looking at old naked people, even when I was not middle aged myself, and I don't beieve that old people look in better in swimsuits than naked. Should ``doormen'' be put at the entrance of beaches (nude beaches or otherwise) to stop old, overweight or otherwise "non-perfect" people from entering? I think not, what do you think?