Informal economies

Something I have noticed in New York City is that we have alot of thriving informal economies. The one that is most prolific in New York City seems to be that of sex work. Before Craigslist shut down its adult ads sextion, New York City was the leading city in posting and answering those ads.It's crazy. A friend of mine posted an S/M ad and received 206 replies in one hour. Something I have observed myself is the Christopher Street Pier being used as a trans-gendered prostitution track. The traffic that goes through there is amazing. How does this tie back to urban concepts? These are the people we aim to kick out when we launch initiatives and revitalization efforts. Christopher Street Pier is a gentrified neighborhood where you can only find people of color or different sexual orientations after 9pm. This used to the pinnacle of the gay community now reduced to lofts and people walking their dogs.