because there are so many colours in the street, and you cannot say that they have any meaning (except for two or three objects). So you can't think of the emotional implications colours have in the street because you cannot control all of them. That's why black and white helps the viewer. What do you think?
yes, the last sentence is the sum of what i meant maybe you've noticed I love street too. it's incredible. Do you want to see a gallery of a friend? He also does street but he never edits his shots. [link] he always walks with his camera in his hand, and believe me, it's not small D300, with some 70-200/2.8