Camo still kicking and going strong as a staple in the wardrobe. The question that needs to be asked is why? Living in a concrete jungle you tend to stick out like dog balls in camouflage. I mean if you want to blend in, dress as a building.
The uniform turns instantly into a classic which is strange, especially when thinking about fashion. One generally likes to be unique, original etc etc. A uniform is rigid and robotic like in thinking and feeling. Conform, conform, conform.
With dudes I think the reason is you don't have to wash it. Spill all the beer you like on your pants, no one will tell. However, you might kick up a stink and you probably won't have a shagging session either.