Answer:
Step-by-step explanation:
There is a photo of Martin Luther King leading a peaceful protest (in Birmingham, I think). You can look it up. It is one of the most famous photographs to come out of the civil rights movement.
The point I'm trying to make is that everyone is well dressed. The men were clad in white shirts and ties and the women wore below the knee skits. It was done deliberately: this was not a wild mob throwing rocks at people or buildings they did not like.
This was a very civilized group that had a central message to give to anyone who saw the march. The message was "We are good people. We are law abiding citizens. We want only to be heard and we want (because we are citizens) to be granted the same rights as our white neighbors."
Their clothing was a symbol of the movement. It was part of what made the protest real. I found the photo for you.