It should be legalized in big cities, regulated for taxation and offered the same public benefits as any other independent profession. I don't think it's a job for everyone, it takes some communication/acting, self-control and good money management. It seems they also pretty much have to give up most of their own pleasure and physical privacy. Ultimately it's a job of self-sacrifice but the part about dignity has more to do with society's negative view than with the work itself.