A couple of points:

Many people are delighted to see buskers, few welcome beggers. When I vacation in Galveston, Texas, part of the fun is having a chance to busk on the sea wall. Last year a car pulled to the curb and a family piled out and took my picture. The parents said that their child had been disappointed with Galveston because she hadn't seen any street performers, and I had "made their day."

My accountant assures me that, for tax purposes, I can write off the expenses of my vacation if I report even a few bucks made busking.