Street musicians are an interesting breed. People who tip them regardless of skill are good people, and we will benefit from more of them. We should teach every generation the importance of street musicians. This can happen in two ways. By age 12 every child plays on a street corner once, solo, in pairs or backing up other children. And when they they are on school trips, they all tip a musician along the way with whatever small gifts they can.
It is part of civic and cultural literacy. It should be a mandatory as math.