Busking is not a 'real job' its not a 'job' at all, its not 'work' in the true sense of the word, its an activity that one can regard as a job , but that is to delude oneself into believing it is so to thereby justify doing it to oneself, but its never a 'real job'.

It is nothing to do with begging, though some buggers may use it as a guise.

Busking is a performing art, requiring many patrons in order for the artiste to sustain his performance over a long period of time thereby making it unnecessary for the busker to get a real job in the true sense of the word.

Still, what do I know ?

Its a form of entertainment, thats what it is.