The funny (sad?) thing is, I remember having coins in my pocket the whole time I was walking through the market. Not only did I have coins in my pocket, but there were several occasions when I was holding the coins in my pocket while walking past some of those musicians. :/
But you’re right. Even if it meant spending an extra $50 month by giving a little something to them, I think it’s a worthy investment if we can personally afford it (and that’s where I think knowing our enough comes into play).