If outfits demand a 'uniform' that will hurt sales of other cosmetics to people in these groups, since they will only need the one set of cosmetic stuff....
It's fine and cool for outfits to want to look the same, but I don't think the game will promote it necessarily because they want and need to sell additional stuff to as many people as possible
Would be nice if the OL could create a 'package' out of cash shop items based on what he/she is using or whatever, so that when someone wants to copy it, they don't have to search through thousands of items...