I often smile to myself at the lengths some men go to to hide their genitals and buttocks in the men's changing room at my leisure centre. I think I have mentioned it before but it's still amusing. Equally interesting are those who, like me, have no fear or inhibition about being naked in the changing room. They tend to be older and/or better endowed by way of gentleman's accoutrements (big dick!). The well endowed folk don't stay naked long but just enough to allow the causal observer (me in this case!) to realise the scale of their endowment! Older men just get on with it, naked being the most convenient mode of getting to the showers or getting dried off and ready for clothing.
I have a routine. I do an hour's yoga then a circuit of the gym for 45-50minutes then a swim for 25-20minutes after which I go straight to the shower, disrobe, wash and, carrying my swimming trunks, proceed to the changing room naked and stay naked till I am well and truly dry before donning clothes to exit. It's interesting to see how many variants of cover up people have invented, which I will not bore you with. However, on the other side of the spectrum, guys in their 20's and those with very well developed muscular physiques tent to be the most shy about revealing their waist to thigh zones! I feel for them. I am much more comfortable than they, struggling to undress or dress whilst still a bit damp, all the time keeping their knackers out of sight!!
John