I'd have to disagree about the busking attitude in England. I have earned money this way on many occasions since the 60's both as a means of keeping body and soul together and for charities. I've never been hassled and although asked to move on from outside the London Underground on one occasion the copper suggested another site that proved to be lucrative.
I must admit I enjoy busking it is a bit of an ego trip I suppose when you can capture an audience out on the street.
Give it a go if you don't depend on the outcome it's great fun!
Baz