I have no particular problem with people seeing my naked body (or partially naked) in the gym changing room, although I do try to keep it to an absolute minimum. I drop my kit in the changing area, wrap a towel around my waist, stack my kit on the bench, walk briskly to the shower cubicles, shower (facing the wall) dry off, wrap the towel around waist again walk back to my clothes pull on my boxers then towel myself off again and then dry my hair then dress. I am neither ashamed nor particularly proud of my body I dont mind if people see my naughty bits but prefer that they refrain from commenting. As I use the corporate gym I often find myself sharing the changing area with other men of my age from the company, we maintain eye contact at all times.
Very typically English I think
..
Young lads (late teens to mid 20s) in pub football and rugby teams are an entirely different matter, in fact they may even be a separate species.