Sargon, normally, I would agree with this. But in this particular situation, the very presence of those dew rags prominently displayed, was encouraging violent gang activity as various gangs tried to stake out Union Station as territory to exploit for their drug trade.
The whole dew rag thing became passe’ as gang members went to more “legitimate” professional sports teams logos which could still show allegiances but were less likely to be successfully scrutinized by police.
They are do rags,not dew rags.
It is to cover the “do”.