Dude, I'm 18 years old and have been working out at my school weight room the last 4 or 5 years, so now that im graduating soon ive been going to a close by Gold's Gym, and the same thing happens there. I dont know what the deal is, ive been going to the gym for about 2 weeks now and probably 7 times I've walked in the locker room with some old guy standing there bare-*** naked. I have no clue what the deal is. I dont know if they're trying to get attention or what, but it is ******* gross its only the old men that do it too. I understand this is a public lockeroom and I expect people to be naked, but the old men walk around naked the whole time brushing their teeth and whatnot. Like you said how hard is it to cover up with a towel or put on a pair of underwear like normal people do, but for some reason they find it necessary to stand naked like they are in their own bathroom at home. I would think they would be embarrassed because every one of them I've walked in on had a little choad. I just learn to expect it and ignore it.